Fraction Simplifier

Reduce fractions to lowest terms, with decimal and mixed output. Simplify any fraction to its lowest terms instantly. Shows the GCD used, decimal value and mixed-number form. Free fraction reducer with steps.

This tool runs 100% in your browser. Your input is never sent to any server — you can even go offline after the page loads.

About the Fraction Simplifier

Reducing a fraction means dividing top and bottom by their greatest common divisor — 84/126 becomes the much friendlier 2/3. This simplifier does it for any fraction, including improper ones, and shows the GCD it divided by so you can follow the working. You also get the decimal value and mixed-number form (7/3 → 2 1/3), covering the three ways a fraction is used across homework, cooking measurements and carpentry.

How to use the Fraction Simplifier

  1. Enter the numerator and denominator.
  2. The simplified fraction appears instantly.
  3. Check the GCD to see the reduction step.
  4. Read the decimal and mixed-number equivalents.

Key features

What does "lowest terms" mean?
The numerator and denominator share no common factor other than 1 — the fraction cannot be reduced any further, like 2/3.
Can the denominator be negative?
Convention keeps the denominator positive; enter −3/4 rather than 3/−4 and the simplifier normalises the sign automatically.

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