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Simplify 42:15
The simplified ratio of 42:15 is 14:5. Free ratio calculator with GCD breakdown.
14:5
GCD of 42 and 15 is 3. Simplified: 42/3 : 15/3 = 14:5
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 |
|---|---|
| 42 / 10 | 21:5 |
| 42 / 13 | 42:13 |
| 42 / 14 | 3:1 |
| 42 / 16 | 21:8 |
| 42 / 17 | 42:17 |
| 42 / 20 | 21:10 |
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.