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Simplify 15:63
The simplified ratio of 15:63 is 5:21. Free ratio calculator with GCD breakdown.
5:21
GCD of 15 and 63 is 3. Simplified: 15/3 : 63/3 = 5:21
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 / 58 | 15:58 |
| 15 / 61 | 15:61 |
| 15 / 62 | 15:62 |
| 15 / 64 | 15:64 |
| 15 / 65 | 3:13 |
| 15 / 68 | 15:68 |
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.