Fraction Calculator
Add, subtract, multiply, or divide two fractions and reduce the result to simplest terms in your browser.
Ready to use
Browser-side · no account · results stay on this page
Enter numerator and denominator values as integers.
Simplified fraction
5/6
Decimal
0.833333
The calculator performs arithmetic on two fractions and reduces the answer.
It also shows a decimal version for quick checking.
Use integer parts
Enter whole-number numerators and denominators.
Avoid zero denominators
Fractions with zero denominators are undefined.
Example
1/2 + 1/3 becomes 5/6.
Assumption
Inputs are intended as exact integer fractions.
Limitation
Mixed numbers and symbolic algebra are not included.
Homework checks
Verify fraction arithmetic.
Recipes
Combine fractional ingredient amounts.
Measurements
Work with fractional lengths.
Teaching
Show simplified and decimal forms.
Can this add and subtract fractions?
Yes. It uses common denominators for addition and subtraction, then reduces the result.
Can this multiply and divide fractions?
Yes. It multiplies numerators and denominators or multiplies by the reciprocal for division.
Does the result reduce automatically?
Yes. The output is simplified with the greatest common divisor.
Can denominators be zero?
No. A zero denominator makes the fraction undefined.
Can this add and subtract fractions?
Yes. It uses common denominators for addition and subtraction, then reduces the result.
Can this multiply and divide fractions?
Yes. It multiplies numerators and denominators or multiplies by the reciprocal for division.
Does the result reduce automatically?
Yes. The output is simplified with the greatest common divisor.
Can denominators be zero?
No. A zero denominator makes the fraction undefined.
Suggested workflow
Fraction workflow
Calculate fractions, simplify ratios, and compare percentages.