Skip to content
Home Tools Math Tools Ratio Simplifier
MATH TOOLS

Ratio Simplifier

Simplify a two-number ratio to its lowest whole-number form.

Use the tool

Enter your values below. Results are calculated in your browser.

About this Ratio Simplifier

Ratio Simplifier reduces two positive whole numbers to an equivalent ratio with no common divisor greater than one. The result is useful when you want a cleaner form for proportions, recipes, scale comparisons or classroom work.

Formula or method

Both sides are divided by their greatest common divisor.

Example

18:24 simplifies to 3:4.

Common uses

  • Reduce recipe or mixture ratios.
  • Simplify scale and proportion examples.
  • Check ratio homework or planning calculations.

How to use this tool

  1. Enter the values or text requested by the calculator.
  2. Choose units or options when the tool provides them.
  3. Select the calculation button and review the result.
  4. Use the formula, example and notes on this page to check whether the result fits your situation.

Important note

This version is designed for positive whole-number ratios.

Frequently asked questions

Why does the tool require whole numbers?

This version simplifies ratios using the greatest common divisor, which is defined here for positive integers.

Does simplifying change the proportion?

No. Dividing both sides by the same common divisor keeps the ratio equivalent.