Fraction Calculator

Add, subtract, multiply or divide two fractions, simplified automatically.

Numerator 1

Denominator 1

Operation

Numerator 2

Denominator 2

Result

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Decimal

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How to add and subtract fractions

To add or subtract, give the fractions a common denominator, combine the numerators, then simplify. To multiply, multiply numerators and denominators straight across. To divide, multiply by the reciprocal of the second fraction.

This calculator does all of that and reduces the answer to its lowest terms using the greatest common divisor.