Fraction Calculator

Add, subtract, multiply, divide fractions — with simplified result and mixed number form.

Fraction 1

Fraction 2

Simplify / Reduce a Fraction

About Fraction Calculator

Fraction Calculator is a free online tool that helps you add, subtract, multiply, divide fractions — with simplified result and mixed number form quickly and accurately. Whether you're a student, professional, or just need a quick answer, this calculator provides instant results with clear explanations. All calculations run locally in your browser — no data is stored or transmitted.

How to Use

Enter your values Fill in the required input fields with your numbers. Use tab to move between fields quickly.

See instant results Results calculate automatically as you type — no need to press a button. Watch the output update in real time.

Review the breakdown Check the detailed breakdown, charts, or tables below the main result for a deeper understanding.

Adjust and compare Change any input value to instantly see how it affects the result. Great for comparing different scenarios.

🔒 Privacy note: All processing happens locally in your browser. Your data is never sent to any server.

Why Use Fraction Calculator?

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Accurate & Reliable Fraction Calculator uses standard mathematical formulas and algorithms, verified against reference implementations. Trust the results for homework, work, or personal use.

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Clear Explanations Get more than just a number. Where applicable, see step-by-step breakdowns, visual representations, and context that helps you understand the result.

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Instant Calculation Results update as you type — no need to press a calculate button or wait for a server response. Real-time feedback helps you explore different scenarios quickly.

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No Data Collection Your inputs are processed locally in your browser. No data is stored, transmitted, or used for any purpose. Close the tab and everything is gone.

Frequently Asked Questions

Find the Least Common Denominator (LCD), convert both fractions, then add numerators. Example: 1/3 + 1/4 → LCD=12 → 4/12 + 3/12 = 7/12.

Multiply numerators together and denominators together: (a/b) × (c/d) = (a×c)/(b×d). Then simplify the result.

Flip the second fraction (reciprocal) and multiply: (a/b) ÷ (c/d) = (a/b) × (d/c) = (a×d)/(b×c).