Fraction Calculator

Add, subtract, multiply, and divide fractions

fractionreducesimplify

📖 How to Use

Enter the numerator and denominator of the first fraction
Select an operator (+, −, ×, ÷)
Enter the second fraction
Click Calculate — the result is auto-reduced

📐 Formula

a/b + c/d = (ad+bc)/(bd)
a/b × c/d = (ac)/(bd)
Results are automatically reduced using GCD.

❓ FAQ

Are results automatically simplified?▾

Yes, all results are reduced to their simplest form.

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About Fraction Calculator

This tool is completely free, no registration required. Works directly in your browser. Supports both PC and mobile devices.

Fraction Calculator is a free online tool that works on both PC and mobile. No registration or download required — just open in your browser. Results are accurate and reliable for everyday use and professional reference.