Method
Fraction arithmetic combines numerators and denominators according to the selected operation, then reduces the result using the greatest common divisor.
Numbers / browser tool
Fraction Calculator
Add, subtract, multiply, or divide two fractions.
Work through fraction arithmetic and get a reduced result.
Your inputs stay on your device
Calculate with fractions
live resultSimplified fraction
Decimal result
Numerators and denominators must be whole numbers. The result is reduced to its simplest form and also shown as a decimal.
Context & Reference
How it works
Calculators are most useful when their assumptions are clear. Review these details to better understand the logic behind the results.
How to use it
Enter two whole-number fractions, choose add, subtract, multiply, or divide, and review the reduced fraction.
Understand the result
The simplified fraction is exact for the integer inputs. A decimal view provides a familiar comparison.
Example
One-half plus one-quarter simplifies to three-quarters, or 0.75.
Notes
Denominators cannot be zero, and division by a zero numerator is not defined.
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