Ratio
Calculator

Simplify ratios, scale proportions, and check whether two ratios are equivalent.

Simplify Ratio

:
Simplified: 3 : 2

Scale Ratio

:
Scaled: 15 : 10

Equivalent Ratios

:
:
Equivalent

Learn more

How do ratios, proportions, and cross-multiplication work?

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Frequently Asked Questions

Find the greatest common divisor (GCD) of both numbers in the ratio and divide each by that value. For example, the ratio 12:8 simplifies to 3:2 by dividing both by their GCD of 4.

Set up a proportion by cross-multiplying: if a to b equals c to d, then a times d equals b times c. Solve for the unknown variable by dividing both sides by the known coefficient.

A ratio compares two quantities and can be written as a to b, a colon b, or a divided by b. A fraction represents a part of a whole and is always expressed as a numerator over a denominator.

Ratio Calculator - Simplify, Scale & Compare Ratios | ToolsCanvas