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Simplify 15:12
The simplified ratio of 15:12 is 5:4. Free ratio calculator with GCD breakdown.
5:4
GCD of 15 and 12 is 3. Simplified: 15/3 : 12/3 = 5:4
How This Was Calculated
Simplification: Divide both terms by their GCD.A:B = (A/GCD) : (B/GCD)
Solving proportions: A/B = C/D — cross-multiply to find the missing value.
Scaling: Multiply both terms by the scale factor.
Quick Reference Table
| Input | Result |
|---|---|
| 15 / 7 | 15:7 |
| 15 / 10 | 3:2 |
| 15 / 11 | 15:11 |
| 15 / 13 | 15:13 |
| 15 / 14 | 15:14 |
| 15 / 17 | 15:17 |
Frequently Asked Questions
What is a ratio?
A ratio compares two quantities by division.
How do I simplify a ratio?
Divide both numbers by their greatest common divisor (GCD).
Can ratios have decimal values?
Yes, but simplified ratios are typically expressed as whole numbers.