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Simplify 80:90
The simplified ratio of 80:90 is 8:9. Free ratio calculator with GCD breakdown.
8:9
GCD of 80 and 90 is 10. Simplified: 80/10 : 90/10 = 8:9
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 |
|---|---|
| 80 / 85 | 16:17 |
| 80 / 88 | 10:11 |
| 80 / 89 | 80:89 |
| 80 / 91 | 80:91 |
| 80 / 92 | 20:23 |
| 80 / 95 | 16:19 |
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.