᠎᠎᠎        

Fraction adder

World's simplest number tool
Quickly calculate the sum of fractions in your browser. To get the sum, just enter your list of fractions in the input field, adjust the separator between the numbers in the options below, and this utility will count all these fractions. Created by developers from team Browserling.
A link to this tool, including input, options and all chained tools.
Import from file
Save as...
Copy to clipboard
Download
Export to Pastebin
Can't convert.
An error has occured.
Chain with...
Remove chain
Save as...
Copy to clipboard
Download
Export to Pastebin
Remove no tools?
This tool cannot be chained.
Input and Output
Enter the symbol that delimits
the input fractions.
Display a sequence of partial
cumulative sums.
Reducing and Fraction Type
Reduce the output sum fraction
to the lowest terms.
(E.g. 2/4 → 1/2 or 6/3 → 2.)
If the numerator is larger than the
denominator, leave the fraction
unchanged. (E.g. 5/3 or ⁹⁄₂.)
If the numerator is larger than the
denominator, extract the integer part
before the fraction.
(E.g. 5/3 → 1 + 2/3.)
Decimals and Fraction Format
Display decimal value next
to the fractional sum.
Use only 7-bit ASCII symbols
to represent fractions.
(E.g. 1/2 or 1_2/3.)
Use superscript and subscript
Unicode symbols to represent
fractions. (E.g. ¹⁄₂ or 1²⁄₃.)

What is a fraction adder?

learn more about this tool
This is an online browser-based program for calculating the sum of a bunch of fractions. It takes two or more fractions of the form "a/b" and "c/d", where "a" and "c" are numerators and "b" and "d" are denominators, and calculates their common denominator by finding the least common multiple (LCM) of "b" and "d". It then changes both fractions to have the same LCM denominator and adds both numerators. By default, it also reduces the resulting fraction to its simple form by dividing both numerator and denominator by their greatest common factor (GCF). If you don't want to reduce the fraction, just uncheck the "Simplify Fraction" option. When the numerator is larger than the denominator, you have two choices – you can display the fraction in an improper form or convert it to a mixed fraction that is a sum of an integer number plus a proper fraction. You can also select the output format for fractions – they can be printed as 7-bit ASCII characters, for example, 1/2, 5/3, or 1 + 2/5, or they can be printed as Unicode superscript and subscript glyphs that look nicer, for example, ¹⁄₂, ⁵⁄₃, or 1²⁄₅. You can add up any number of fractions by entering each fraction on a new line. If the fractions are separated by a comma or a semicolon, then you can change the sequence format by setting the input delimiter to the symbol that separates fractions. The input fractions can be proper (numerator < denominator), improper (numerator > denominator), or mixed (a whole number and a proper fraction together). When working with mixed fractions, use the formats "c+a/b", "c_a/b", or "c a/b" (where c is the whole part). This tool also works integers (for example, 2, 5, -10) and decimals (for example, 0.2, 1.5, -3.4). To see how the resulting total changes when more and more fractions are added together, use the "Running Sum" option, which displays partial sums during the calculation. Also, as it's not always instantly obvious how large is a fraction, you can activate the "Show Decimal Value" option, which shows the exact or approximate decimal value next to the fraction. That's numberwang!

Fraction adder examples

Click to use
Add Two Fractions
This example adds two proper fractions: 1/2 and 1/6. First, it finds the least common multiple (LCM) of denominators, which is 6. Then it multiplies the first term by 3/3 to have the same denominator as in the second term: (3/3)×(1/2) = 3/6. Finally, it adds the numerators of both terms: (3 + 1)/6 = 4/6. As the simplify-fractions option is activated here, the utility also reduces the fraction by 2 and returns it in ASCII format as 2/3.
1/2 1/6
2/3
Required options
These options will be used automatically if you select this example.
Enter the symbol that delimits
the input fractions.
Display a sequence of partial
cumulative sums.
Reduce the output sum fraction
to the lowest terms.
(E.g. 2/4 → 1/2 or 6/3 → 2.)
If the numerator is larger than the
denominator, leave the fraction
unchanged. (E.g. 5/3 or ⁹⁄₂.)
Display decimal value next
to the fractional sum.
Use only 7-bit ASCII symbols
to represent fractions.
(E.g. 1/2 or 1_2/3.)
Cumulative Sum
In this example, we add an improper negative fraction and two proper positive fractions. As you can see, the fractions are input as a series of addends. To process them, we set the input separator to "+" to correctly separate all three numbers. To show all steps of fraction summation, we activate the "Cumulative Sum" option and use the "Show Decimal Value" option to display the decimal floating-point values of results. We have deactivated the "Simplify Fraction" option here and you can see the total sum as an improper fraction with the common denominator of all three fractions.
-4/3 + 5/6 + 3/4
-4/3 (-1.33333) -3/6 (-0.5) 3/12 (0.25)
Required options
These options will be used automatically if you select this example.
Enter the symbol that delimits
the input fractions.
Display a sequence of partial
cumulative sums.
Reduce the output sum fraction
to the lowest terms.
(E.g. 2/4 → 1/2 or 6/3 → 2.)
If the numerator is larger than the
denominator, leave the fraction
unchanged. (E.g. 5/3 or ⁹⁄₂.)
Display decimal value next
to the fractional sum.
Use only 7-bit ASCII symbols
to represent fractions.
(E.g. 1/2 or 1_2/3.)
Add Various Fractions
In this example, we calculate the sum of proper, improper, and mixed fractions, as well as regular integer and decimal numbers. We display the partial sum using the sup and sub Unicode characters. We reduce all fractions to their simplest form and extract the whole part before the fraction where the numerator is greater than the denominator.
5/6 7/5 2+1/6 -5 0.8
⁵⁄₆ 2⁷⁄₃₀ 4²⁄₅ -³⁄₅ ¹⁄₅
Required options
These options will be used automatically if you select this example.
Enter the symbol that delimits
the input fractions.
Display a sequence of partial
cumulative sums.
Reduce the output sum fraction
to the lowest terms.
(E.g. 2/4 → 1/2 or 6/3 → 2.)
If the numerator is larger than the
denominator, extract the integer part
before the fraction.
(E.g. 5/3 → 1 + 2/3.)
Display decimal value next
to the fractional sum.
Use superscript and subscript
Unicode symbols to represent
fractions. (E.g. ¹⁄₂ or 1²⁄₃.)
Pro tips Master online number tools
You can pass input to this tool via ?input query argument and it will automatically compute output. Here's how to type it in your browser's address bar. Click to try!
https://onlinetools.com/number/add-fractions?input=1/2%0A1/6&input-separator=%255Cn&running-sum=False&simplify-fraction=True&improper-fraction=True&show-decimal=False&ascii-fraction=True
All number tools
Didn't find the tool you were looking for? Let us know what tool we are missing and we'll build it!
Generate an Arithmetic Progression
Quickly create a list of numbers in arithmetic series.
Generate a Geometric Progression
Quickly create a list of numbers in geometric series.
Draw Pascal's Triangle
Quickly calculate the coefficients of the binomial expansion.
Convert Numbers to a Picture
Quickly create a downloadable image from numbers.
Generate Random Numbers
Quickly create a list of random numbers.
Generate Random Prime Numbers
Quickly create a list of random primes from a specific interval.
Generate Random Matrices
Quickly create a matrix with random numbers as its elements.
Generate Random Vectors
Quickly create a random row or column vector.
Find the Transpose of a Matrix
Quickly exchange rows and columns of a matrix.
Find Matrix Inverse
Quickly find the inverse matrix of any square matrix.
Calculate Matrix Determinant
Quickly find the determinant of any square matrix.
Calculate Pi Digits
Quickly calculate any number of digits of number π.
Calculate e Digits
Quickly generate the specified number of Euler constant's digits.
Calculate Phi Digits
Quickly generate any number of golden ratio digits.
Generate Look and Say Numbers
Quickly generate numbers of say what you see sequence.
Calculate Fibonacci Numbers
Quickly calculate numbers of Fibonacci sequence.
Calculate Lucas Numbers
Quickly calculate numbers of Lucas series.
Calculate Fibonacci-like Series
Quickly generate Fibonacci-like series with custom start values.
Calculate Linear Recurrence Series
Quickly calculate members of a linear recurrence series.
Calculate Prime Numbers
Quickly create a sequence of prime numbers.
Number Primality Test
Quickly check if the given number is a prime.
Calculate Prime Factors
Quickly compute all prime factors of a number.
Calculate All Factors of a Number
Quickly compute all divisors of a number.
Find Greatest Common Divisor
Quickly calculate the GCD of two or more numbers.
Find Least Common Multiple
Quickly calculate the LCM of two or more numbers.
Generate an Integer Sequence
Quickly create a list of increasing or decreasing integers.
Generate Even Numbers
Quickly create a sequence of even numbers.
Generate Odd Numbers
Quickly create a sequence of odd numbers.
Generate a Sequence of Squares
Quickly create a list of squares.
Generate a Sequence of Cubes
Quickly create a list of cubes.
Generate Powers of Two
Quickly generate a series of numbers in the form 2^n.
Generate Powers of Ten
Quickly generate a series of numbers in the form 10^n.
Pick a Number
Quickly choose one or more numbers from a list of numbers.
Round a Number
Quickly round one or more numbers to the given accuracy.
Sort a List of Numbers
Quickly sort numbers in ascending or descending order.
Sort Digits in a Number
Quickly sort number's digits in ascending or descending order.
Shuffle Digits in a Number
Quickly randomize the order of digits in a number.
Filter a List of Numbers
Quickly filter numbers according to certain criteria.
Calculate Number Sum
Quickly add up all the numbers in the given list and find their sum.
Calculate Number Product
Quickly multiply all the numbers together and find their product.
Calculate Digit Sum
Quickly add up all the digits of the given numbers.
Calculate Digit Product
Quickly multiply all the digits of the given numbers.
Add Fractions
Quickly sum up all the fractions in the given list and find their total.
Find the Maximum Number
Quickly find the largest number in a number sequence.
Find the Minimum Number
Quickly find the smallest number in a number sequence.
Generate a Unit Matrix
Quickly create a diagonal matrix with ones on the main diagonal.
Convert Numbers to Words
Quickly spell cardinal and ordinal numbers using English words.
Convert Words to Numbers
Quickly convert spelled numbers to regular numbers.
Convert a Number to the Power of Two
Quickly convert a number to the form 2^x.
Convert a Number to the Power of Ten
Quickly express a number in the form 10^x.
Convert a Number to the Negadecimal Base
Quickly convert base 10 numbers to base -10.
Change a Number's Base
Quickly convert a number from one base to any other base.
Create Unicode Fractions
Quickly convert simple fractions to pretty Unicode fractions.
Create a Palindrome from a Number
Quickly add digits to a number so that it becomes a palindrome.
Check if a Number is a Palindrome
Quickly test if the given numbers are palindromes.
Coming soon These number tools are on the way
Generate Numberwang Numbers
Create a list of numberwang numbers.
Generate Magic Numbers
Create a list of neat looking numbers.
Draw a Magic Square
Create a matrix of numbers with rows and cols having same sum.
Rewrite Numbers
Given numbers and a grammar, recursively rewrite them.
Create a Floating Point Number
Create a number from the mantissa, base, and exponent.
Visualize a Floating Point Number
Show how a fp number is represented in a computer.
Convert a Number to the Scientific Notation
Convert a number to the a×10<sup>b</sup> form.
Convert Scientific Notation to a Number
Convert a number in scientific notation to a regular number.
Generate Unary Numbering
Create a list of unary numbers (1, 11, 111, 1111, …).
Generate Symbolic Numbering
Create a list of alphabetic numbers (a, b, c, …, z, aa, ab, …).
Generate Roman Numbering
Create a list of Roman numbers (i, ii, iii, iv, v…).
Generate Braille Numbering
Create a list of Braille numbers (⠂, ⠆, ⠒, ⠲, ⠢, …).
Generate Random Binary Numbers
Create a list of random binary numbers.
Generate Random Octal Numbers
Create a list of random octal numbers.
Generate Random Decimal Numbers
Create a list of random decimal numbers.
Generate Random Hex Numbers
Create a list of random hexadecimal numbers.
Calculate a Running Sum
Calculate a cumulative sum of a list of numbers.
Calculate a Running Difference
Calculate a cumulative difference of a list of numbers.
Calculate a Running Product
Calculate a cumulative product of a list of numbers.
Calculate Number Quotient
Divide two numbers and find their quotient.
Calculate Digit Quotient
Divide the digits of the given number.
Calculate the Factorial
Find the factorial of a number.
Create Number Anagrams
Create one or more anagrams of a number.
Generate Number Bigrams
Create a list of digit bigrams from a number.
Generate Number Trigrams
Create a list of digit trigrams from a number.
Generate Number N-grams
Create a list of digit ngrams from a number.
Generate a Polynomial Sequence
Create a list of polynomial progression numbers.
Generate SI Prefixes
Create a list of metric prefixes.
Analyze a Number
Report how many digits appear how many times.
Convert a Number to an Ordinal
Convert a cardinal number to an ordinal number.
Convert an Ordinal to a Number
Convert an ordinal number to a cardinal number.
Convert a Number to Roman Number
Convert Arabic numerals to Roman numerals.
Convert a Roman Number to Regular Number
Convert Roman Numerals to Arabic numerals.
Generate Negafibonacci Numbers
Calculate a series of extended Fibonacci numbers.
Generate Fibonacci Primes
Find numbers that are both Fibonacci numbers and primes.
Fibonacci Number Test
Check if a number is a Fibonacci number.
Fibonacci Prime Test
Check if a number is both a Fibonacci number and a prime.
Construct Fibonacci Words
Create a sequence of Fibonacci words.
Construct Tribonacci Words
Create a sequence of Tribonacci words.
Construct Tetranacci Words
Create a sequence of Tetranacci words.
Construct Pentanacci Words
Create a sequence of Pentanacci words.
Generate Negalucas Numbers
Calculate a series of extended Lucas numbers.
Generate Lucas Primes
Calculate a series of extended Lucas numbers.
Lucas Prime Test
Check if a number is both a Lucas number and a prime.
Generate Moser de Bruijn Numbers
Calculate a sequence of Moser-Bruijn numbers.
Generate Kolakoski Numbers
Calculate a sequence of Oldenburger-Kolakoski numbers.
Generate Stanley Numbers
Calculate a sequence of Stanley numbers.
Generate Gijswijt Numbers
Calculate a sequence of self-describing Gijswijt numbers.
Generate Rudin-Shapiro Numbers
Calculate a sequence of Rusin-Shapiro numbers.
Generate Baum-Sweet Numbers
Calculate a sequence of Baum-Sweet numbers.
Generate Thue-Morse Sequence
Calculate members of Thue-Morse number series.
Generate Perfect Numbers
Create a list of perfect numbers.
Generate Almost Perfect Numbers
Create a list of almost perfect numbers.
Generate Excessive Number Sequence
Calculate a sequence of abundant numbers.
Generate Deficient Number Sequence
Calculate a sequence of deficient numbers.
Calculate Dragon Curve Numbers
Generate a list of paperfolding sequence numbers.
Generate Composite Numbers
Create a list of numbers that are not prime.
Draw a Number on an LCD
Generate an LCD display that shows the given number.
Draw a Numbers Table
Generate a table of numbers.
Test if a Number is Perfect
Check if the given number is a perfect number.
Test if a Number is Abundant
Check if the given number is an abundant number.
Test if a Number is Deficient
Check if the given number is a deficient number.
Calculate the Modulo
Find the modulus of a number.
Group Number Digits
Group together digits of a number.
Split a Number into Digits
Create a list of digits from a number.
Printf Numbers
Apply sprintf or printf function to numbers.
Create Zalgo Numbers
Let Zalgo destroy your numbers.
Repeat a Number
Repeat a number multiple times.
Mirror a Number
Create a mirror copy of a number.
Zero-pad a Number
Add zeros to a number.
Custom-pad a Number
Add a padding of custom symbols to a number.
Reverse a Number
Reverse the order of digits of a number.
Rotate a Number
Cyclically rotate digits of a number to the left or right.
Increase a Number
Add one to the given number.
Increase All Digits in a Number
Add one to every digit in a number.
Decrease a Number
Subtract one from the given number.
Decrease All Digits in a Number
Subtract one from every digit in a number.
Find Patterns in Numbers
Discover patterns in sequences of numbers.
Count Number Occurrences
Find how often numeric values occur.
Calculate Percentages
Find x% of a number.
Generate Custom Numbers
Create numbers of arbitrary length and properties.
Print Googol
Print the Googol/Google number, which is 10<sup>100</sup>.
Generate Big Numbers
Create a list of big numbers.
Generate Small Numbers
Create a list of small numbers.
Generate Natural Numbers
Create a list of natural numbers.
Generate Rational Numbers
Create a list of rational numbers.
Generate Constant Sequence
Create a series of numbers where all terms are the same.
Generate Real Numbers
Create a sequence of real numbers.
Generate Complex Numbers
Create a list of complex numbers.
Generate Binary Numbers
Create a sequence of binary numbers.
Generate Pairs of Numbers
Create a sequence of number pairs.
Generate Triples of Numbers
Create a sequence of number triples.
Generate Tuples of Numbers
Create a sequence of number n-tuples.
Generate a Short Number
Create a number with not that many digits.
Generate a Long Number
Create a number with many digits.
Interweave Numbers
Interweave two or more number digit-by-digit.
Find the Decimal Expansion of a Number
Rewrite a number in the decimal representation.
Convert a Fraction to a Decimal
Convert a fraction to a decimal number.
Convert a Decimal to a Fraction
Convert a decimal number to a fraction.
Convert a Binary Number to Octal Number
Convert a base two number to base eight number.
Convert a Binary Number to Decimal Number
Convert a base two number to base ten number.
Convert a Binary Number to Hex Number
Convert a base two number to base sixteen number.
Convert a Octal Number to Binary Number
Convert a base eight number to base two number.
Convert a Octal Number to Decimal Number
Convert a base eight number to base ten number.
Convert a Octal Number to Hex Number
Convert a base eight number to base sixteen number.
Convert a Decimal Number to Binary Number
Convert a base ten number to base two number.
Convert a Decimal Number to Octal Number
Convert a base ten number to base eight number.
Convert a Decimal Number to Hex Number
Convert a base ten number to base sixteen number.
Convert a Hex Number to Binary Number
Convert a base sixteen number to base two number.
Convert a Hex Number to Octal Number
Convert a base sixteen number to base eight number.
Convert a Hex Number to Decimal Number
Convert a base sixteen number to base ten number.
Convert Any Number to Any Base
Convert any number in any base to any other base.
Change Number's Mantissa
Change the significand of a number.
Change Number's Exponent
Change the power of a number.
Replace Digits with Letters
Replace digits in a number with alphabet letters.
Create a Number Spiral
Form a spiral from the digits of a number.
Create a Number Circle
Form a circle from the digits of a number.
Create a Number Tree
Form a tree from the given numbers.
Create a Number Digit Tree
Form a tree from the digits of a number.
Remove Decimal Point
Remove the decimal separator from a decimal number.
Add Errors to Numbers
Modify numbers so they are almost the same but have errors.
Create Number Typos
Generate various number typos.
Change Number Font
Write numbers in a different font.
Generate Bold Numbers
Write numbers in a bold font.
Generate Underline Numbers
Write numbers with an underline below them.
Generate Strikethrough Numbers
Write numbers with a strikethrough on them.
Generate Superscript Numbers
Write numbers in a superscript font.
Generate Subscript Numbers
Write numbers in a subscript font.
Create Fake Numbers
Change digits in a number to Unicode look-alikes.
Perturb Numbers
Change the given numbers a little bit.
Perturb Number Digits
Change the digits of the given numbers a little bit.
Find Entropy of a Number
Calculate the complexity (entropy) of a number.
Numberwang Number Test
Test if the given number is numberwang.
Created with love by
51K
@browserling
We're Browserling — a friendly and fun cross-browser testing company powered by alien technology. At Browserling we love to make peoples' lives easier, so we created this collection of number crunching tools. Our tools have the simplest user interface that doesn't require advanced computer skills and they are used by millions of people every month. Our number tools are actually powered by our web developer tools that we created over the last couple of years. Check them out!
Secret message
If you love our tools, then we love you, too! Use coupon code NUMBERLING to get a discount for our premium plans.
Privacy Policy we don't log data!
All conversions and calculations are done in your browser using JavaScript. We don't send a single bit about your input data to our servers. There is no server-side processing at all. We use Google Analytics and StatCounter for site usage analytics. Your IP address is saved on our web server for additional analytics. The free plan doesn't use cookies and don't store session information in cookies. The premium and team plans use cookies to store session information so that you are always logged in. We use your browser's local storage to save tools' input. It stays on your computer.
Terms of Service the legal stuff
By using Online Tools you agree to our Terms of Service. All tools are free for personal use but to use them for commercial purposes, you need to get a premium plan. You can't do illegal or shady things with our tools. We may block your access to tools, if we find out you're doing something bad. We're not liable for your actions and we offer no warranty. We may revise our terms at any time.