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Simplify 57:21
The simplified ratio of 57:21 is 19:7. Free ratio calculator with GCD breakdown.
19:7
GCD of 57 and 21 is 3. Simplified: 57/3 : 21/3 = 19:7
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 |
|---|---|
| 57 / 16 | 57:16 |
| 57 / 19 | 3:1 |
| 57 / 20 | 57:20 |
| 57 / 22 | 57:22 |
| 57 / 23 | 57:23 |
| 57 / 26 | 57:26 |
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.