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Simplify 21:38
The simplified ratio of 21:38 is 21:38. Free ratio calculator with GCD breakdown.
21:38
GCD of 21 and 38 is 1. Simplified: 21/1 : 38/1 = 21:38
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 |
|---|---|
| 21 / 33 | 7:11 |
| 21 / 36 | 7:12 |
| 21 / 37 | 21:37 |
| 21 / 39 | 7:13 |
| 21 / 40 | 21:40 |
| 21 / 43 | 21:43 |
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.