HOW IT IS CALCULATED
Reduce a ratio to its simplest form
Both parts of the ratio are divided by their greatest common divisor.
Instant resultClear formulaRuns locally
01Values
02A:B ÷ GCD(A,B)
03Result
12:18 → 2:3
Reducing a ratio preserves the proportion
2:3 and 12:18 describe the same relative relationship.
02
In short
What logic does the calculator use?
A:B ÷ GCD(A,B)
Example?
12:18 → 2:3