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Ratio Calculator

Simplify a ratio to its lowest terms and express it as a decimal and a percentage.

如何使用此工具

  1. 1Paste or type your input above.
  2. 2The result updates instantly.
  3. 3Copy the output with one click.

常见问题

How do you simplify a ratio?+

Divide both numbers by their greatest common factor (GCF). For 16:9, the GCF is 1, so it's already simplest; 18:12 simplifies to 3:2 because both divide by 6.

Is my data private?+

Yes. The tool runs entirely in your browser — nothing you paste or type is uploaded to a server.

了解更多

  • Ratio Calculator: formula and example
  • ratio calculator explained
  • Common mistakes with ratio calculator