How do you simplify a ratio?

Divide both values by their greatest common divisor. This keeps the comparison equal while using the smallest whole numbers.

Is a ratio the same as a fraction?

They are closely related. A ratio compares quantities with a colon, while a fraction usually represents division or part of a whole.

Can I simplify decimal ratios?

This version accepts whole numbers. Multiply decimal values by the same power of 10 first, then enter the resulting integers.

Math Calculators

Ratio Calculator

Simplify a ratio to its lowest whole-number terms and view its decimal value.

Free browser toolRuns in your browserNo sign-up

Simplified ratio

2 : 3

Decimal value: 0.666666666667

About the Ratio Calculator

A ratio compares two quantities. This calculator reduces a whole-number ratio to its simplest equivalent form by dividing both sides by their greatest common divisor.

For example, 24:36 simplifies to 2:3. The decimal value is also shown, which helps when comparing ratios or converting them to rates.

The result updates instantly and all processing stays in your browser.

Key features

Simplifies ratios to lowest terms
Supports positive and negative whole numbers
Shows the equivalent decimal value
Instant browser-based calculation

How to use

1Enter the first and second whole-number values.
2The ratio simplifies automatically.
3Use the reduced ratio or decimal value in your calculation.

Examples

Simplify a ratio

Input: 4:8

Output: 1:2

Both sides are divided by their greatest common factor.

Frequently asked questions

How do you simplify a ratio?: Divide both values by their greatest common divisor. This keeps the comparison equal while using the smallest whole numbers.
Is a ratio the same as a fraction?: They are closely related. A ratio compares quantities with a colon, while a fraction usually represents division or part of a whole.
Can I simplify decimal ratios?: This version accepts whole numbers. Multiply decimal values by the same power of 10 first, then enter the resulting integers.

Open a related tool to prepare your files or refine the finished result.