Fraction Calculator
Enter numerators and denominators and an operator.
Inputs
Results
Result
5/6
Decimal
0.8333
Formula
Reduce by GCD after basic fraction arithmetic.
Example
1/2 + 1/3 = 5/6.
What the Fraction Calculator does
The Fraction Calculator handles the exact fraction math you learned in school, but instantly and without arithmetic mistakes. It's useful for homework checking, day-to-day conversions, and quick sanity checks.
How to use it
Fill in the fields you know and the Fraction Calculator solves for the missing one. Every result is labeled clearly, so it's obvious what you're looking at.
Frequently asked questions