Simplify the Ratio 2:4

The ratio 2:4 simplifies to 1:2.

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How to use this tool

Enter a and b in the fields above.
Results update instantly as you type — or click Calculate.
Read your simplified ratio and the full breakdown beneath it.

Simplify the ratio 2:4 to its lowest terms — the result is 1:2.

Frequently asked questions

How do you simplify a ratio?: Find the GCD of a and b, then divide both by it. For example, 12:8 → GCD=4 → 3:2.