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Fraction Calculator

Add, subtract, multiply or divide two fractions and get an exactly reduced fraction without floating-point rounding.

Convert in your browser · No sign-up

Enter integers or numerator/denominator pairs. Negative denominators are normalized; division by zero is rejected.

Up to 100,000 UTF-16 units per input and 1,000,000 per result. See the supported formats and examples below.

Result

Add your input or load an example, then run the tool. Your result will appear here.

How to use

  1. Add, subtract, multiply or divide two fractions and get an exactly reduced fraction without floating-point rounding.
  2. Choose the mode or options, then run the tool.
  3. Review the result, then copy or download the TXT file.

Example

1/3 + 1/6 = 1/2

Details and limitations

Text stays in your browser; it is not sent to a conversion server.

Format references

Tool page updated: