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Simplify 90:18
The simplified ratio of 90:18 is 5:1. Free ratio calculator with GCD breakdown.
5:1
GCD of 90 and 18 is 18. Simplified: 90/18 : 18/18 = 5:1
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 |
|---|---|
| 90 / 13 | 90:13 |
| 90 / 16 | 45:8 |
| 90 / 17 | 90:17 |
| 90 / 19 | 90:19 |
| 90 / 20 | 9:2 |
| 90 / 23 | 90:23 |
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.