Fraction Calculator — Free Add, Subtract, Multiply, Divide

Free fraction calculator. Add, subtract, multiply, divide fractions with auto-simplification and mixed number display. 100% client-side. 100% serverless.

🔒 100% Private
Completely Free
🌐 Runs in Browser
📦 Export Ready

Fraction Calculator — Free Add, Subtract, Multiply, Divide

Tool Workspace

Ready

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  1. Enter Fractions — Numerator and denominator for each fraction.
  2. Choose Operation — Add, subtract, multiply, or divide.
  3. Calculate — See simplified result, decimal, and mixed number.

Fraction Calculator — Add, Subtract, Multiply, Divide

The Fraction Calculator performs arithmetic on two fractions with automatic simplification. Enter numerators and denominators, choose an operation, and get results as simplified fractions, decimals, and mixed numbers.

How Fraction Math Works

  • Addition/Subtraction — Find common denominator: a/b ± c/d = (ad ± bc) / bd
  • Multiplication — Multiply straight across: a/b × c/d = ac / bd
  • Division — Multiply by reciprocal: a/b ÷ c/d = ad / bc

Features

  • Auto-Simplify — Results reduced to lowest terms.
  • Mixed Numbers — Shows improper fractions as mixed numbers.
  • Decimal — Decimal equivalent shown.
  • Visual Input — Fraction bar visual for intuitive input.

Privacy

All calculations run in your browser.

Frequently Asked Questions

Does it auto-simplify?

Yes. Results are automatically reduced to lowest terms using the Greatest Common Divisor (GCD) algorithm.

What operations are supported?

Addition (+), subtraction (−), multiplication (×), and division (÷) of two fractions.

Does it show mixed numbers?

Yes. When the numerator is larger than the denominator, it shows the mixed number form (e.g., 5/4 = 1 1/4).

Is my data uploaded?

No. All calculations run 100% in your browser.