Fraction Calculator

Add, subtract, multiply and divide fractions, mixed numbers and decimals, with results simplified to lowest terms and shown as mixed numbers.

Runs on your device

Result

Results appear here as you type.

What it does

Enter values like 3/4, 1 1/2 or 0.25. Arithmetic is exact (integer numerators and denominators), so there is no decimal rounding.

How to use it

  1. Enter the first fraction.
  2. Choose the operation.
  3. Enter the second fraction and read the simplified result.

Example

1½ + ¾ = 9/4 = 2¼ Select Try an example above to see it.

When it helps

  • Primary and secondary maths homework.
  • Recipe scaling.
  • Measurements in inches.

Questions

How are decimals handled?

0.75 is read exactly as 75/100 and simplified to 3/4.

Can I enter negative mixed numbers?

Yes: -1 1/2 means −1½.

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