How does the calculator simplify fractions?

It divides numerator and denominator by their GCD (greatest common divisor).

Can I enter negative fractions?

Yes, negative numerators and denominators are fully supported.

Fraction Calculator - Add Subtract Multiply Divide Fractions

How to use the Fraction Calculator

Built for speed, clarity, and SEO depth.

This fraction calculator performs all four operations on fractions and automatically simplifies the result to its lowest terms using the GCD algorithm.

Fraction Operation Formulas

Standard arithmetic operations on fractions.

Addition

a/b + c/d = (ad + bc) / bd

Cross-multiply then simplify.

Division

a/b ÷ c/d = a/b × d/c

Multiply by the reciprocal.

Frequently Asked Questions

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