Fraction arithmetic is easy to get wrong by hand, especially with different denominators. Enter two fractions and an operation and get an automatically simplified result, plus its decimal equivalent, instantly.
How to use the fraction calculator tool
- 1
Enter both fractions
Type the numerator and denominator for each fraction.
- 2
Pick an operation
Add, subtract, multiply, or divide.
- 3
Read the result
The answer is automatically simplified, with its decimal value shown too.
Common use cases
Check homework
Verify fraction arithmetic for a math assignment.
Scale a recipe
Combine or adjust fractional measurements when scaling a recipe up or down.
Simplify a fraction
Enter a fraction as one operand with a no-op like adding zero to see it simplified.
Frequently asked questions
Yes — the result is always reduced to lowest terms using the greatest common divisor.