Unit & Number Tools
Ratio Simplifier
Reduce a two-part whole-number ratio to its lowest terms and see the common divisor used.
Example
12:18 reduces to 2:3 because the greatest common divisor of 12 and 18 is 6.
What to know
Use positive whole numbers. This is a ratio, not a fraction-to-decimal converter; 2:3 describes relative parts.
Related tools
Questions
What happens if the ratio is already simplified?
The common divisor is 1, so the ratio stays the same.
Can I enter decimal values?
No. Enter whole numbers for exact reduction.