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Numio

Fraction Calculator

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

Mode

Input

Result

Type or paste on the left — the result updates as you type.

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.

Format references

Tool page updated: