Simplify the Ratio 18:27

The ratio 18:27 simplifies to 2:3.

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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.

Find the simplest form of 18:27 — it reduces to 2:3.

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.