Ratio Simplifier

Reduce any ratio to its lowest whole-number terms using the greatest common divisor. Great for recipes, scale models, mixes and proportions.

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Simplified: 4 : 3

Worked on the example above, step by step — follow along and you can do it on paper next time, no tool required.

A ratio reduces just like a fraction: divide both sides by their greatest common divisor (GCD).
Find the GCD of the two numbers
GCD(1024, 768) = 256
Divide both sides by the GCD
1024 ÷ 256 : 768 ÷ 256 = 4 : 3

What is 1024 : 768 simplified?

4 : 3.

How is it reduced?

Both numbers are divided by their greatest common divisor, so the ratio stays the same but the numbers shrink.