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Simplify 40:18
The simplified ratio of 40:18 is 20:9. Free ratio calculator with GCD breakdown.
20:9
GCD of 40 and 18 is 2. Simplified: 40/2 : 18/2 = 20:9
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 / 13 | 40:13 |
| 40 / 16 | 5:2 |
| 40 / 17 | 40:17 |
| 40 / 19 | 40:19 |
| 40 / 20 | 2:1 |
| 40 / 23 | 40:23 |
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.