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Simplify 40:21
The simplified ratio of 40:21 is 40:21. Free ratio calculator with GCD breakdown.
40:21
GCD of 40 and 21 is 1. Simplified: 40/1 : 21/1 = 40:21
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 |
|---|---|
| 40 / 16 | 5:2 |
| 40 / 19 | 40:19 |
| 40 / 20 | 2:1 |
| 40 / 22 | 20:11 |
| 40 / 23 | 40:23 |
| 40 / 26 | 20:13 |
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.