Math Calculators
Fraction Calculator
Add, subtract, multiply or divide two fractions and get the fully simplified answer, plus decimal and percentage.
About the Fraction Calculator
Fractions can be fiddly by hand, especially when denominators differ. This fraction calculator does the heavy lifting: enter two fractions, pick an operation, and get the answer reduced to its lowest terms.
It also converts the result to a decimal and a percentage, making it useful for homework, cooking measurements and DIY projects.
How to use the Fraction Calculator
- Enter the numerator and denominator of the first fraction.
- Choose an operation.
- Enter the second fraction.
- Click Calculate for the simplified result.
How the calculation works
a/b + c/d = (ad + cb) / bd
a/b × c/d = ac / bd
then divide by the greatest common divisor to simplify
a/b × c/d = ac / bd
then divide by the greatest common divisor to simplify
Example
1/2 + 1/3 = 5/6, which is 0.8333 or about 83.33%.
Frequently asked questions
Yes, the answer is automatically reduced to its lowest terms using the greatest common divisor.
Yes, numerators larger than denominators are fully supported and simplified.
Yes, choose the divide operation; the calculator multiplies by the reciprocal of the second fraction.
Yes, every result includes both a decimal and a percentage equivalent.