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Ratio Calculator

Simplify a ratio to its lowest terms, or solve a proportion.

Simplified ratio: 1 : 2

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How It Works

Enter two numbers to simplify their ratio, or add a third value to solve A:B = C:D.

Simplified ratio = A / GCD(A,B) : B / GCD(A,B)

Example

The ratio 4:8 simplifies to 1:2.

Frequently Asked Questions

How is a ratio simplified?
Both numbers are divided by their greatest common divisor (GCD), leaving the smallest whole-number equivalent.

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