Calculator Tools

Fraction Calculator

Perform arithmetic on fractions with full step-by-step working shown. Automatically finds the LCD, simplifies results, and converts to mixed numbers — perfect for students and anyone working with fractional values.

Step-by-step results shown No sign-up required Browser-only — no upload

Features

  • Add, subtract, multiply, and divide fractions
  • Full step-by-step working displayed
  • Automatic simplification to lowest terms
  • Mixed number input and output (e.g. 1½)
  • LCD (Lowest Common Denominator) shown for addition/subtraction
  • Converts between improper fractions and mixed numbers
  • Whole number support
  • No account, browser-only

How to use it

  1. Enter the numerator and denominator for each fraction.
  2. Select the operation (+, −, ×, ÷).
  3. Click Calculate to see the result and full working.
  4. Toggle 'Mixed number' to display as 2 3/4 instead of 11/4.

Use cases

  • Homework help for fraction arithmetic
  • Recipe scaling with fractional measurements
  • Construction and carpentry calculations
  • Verifying manual fraction calculations

Limitations

  • Browser processing depends on available device memory for very large inputs.
  • Tool-specific limits based on file format or browser support are noted on each tool page.
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Questions & answers

Frequently asked

Does it support mixed numbers like 2 3/4?

Yes. Enter whole number, numerator, and denominator separately. The tool converts to improper fraction for calculation.

What does 'simplify' mean?

Simplification reduces a fraction to its lowest terms by dividing by the GCD. E.g. 6/8 simplifies to 3/4.