How does this simplify ratios?

It divides both numbers by their greatest common factor to express the simplest whole-number ratio.

How is an equivalent ratio found?

Multiply or divide both numbers by the same value.

How is a ratio different from a fraction?

A ratio compares two quantities; a fraction typically represents a part of a whole.

Ratio Calculator - CalculatorLabs.net

Ratio Calculator

Simplify ratios and solve proportions in seconds.

Simplify a Ratio

Simplified Ratio-

As a Decimal (A ÷ B)-

Solve a Proportion: A : B = C : ?

D-

What Is a Ratio Calculator?

A ratio compares two quantities. This tool simplifies any ratio A:B down to its lowest terms, and solves proportions of the form A:B = C:D — useful for recipe scaling, map scales, mixing solutions, and word problems.

A ratio compares the length (or size) of two quantities side by side.

Formulas

Simplify: divide A and B by their GCF
Proportion: D = (B × C) ÷ A

How to Use This Calculator

To simplify: enter A and B, then click "Simplify Ratio".
To solve a proportion: enter A, B, and C in the second section, then click "Solve for D".

Worked Example

Example 1: 8:12 simplifies to 2:3 (dividing both by their GCF of 4).
Example 2: If 2:5 = 10:D, then D = (5 × 10) ÷ 2 = 25.