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Simplify 72:18
The simplified ratio of 72:18 is 4:1. Free ratio calculator with GCD breakdown.
4:1
GCD of 72 and 18 is 18. Simplified: 72/18 : 18/18 = 4:1
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 |
|---|---|
| 72 / 13 | 72:13 |
| 72 / 16 | 9:2 |
| 72 / 17 | 72:17 |
| 72 / 19 | 72:19 |
| 72 / 20 | 18:5 |
| 72 / 23 | 72:23 |
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.