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Simplify 90:70
The simplified ratio of 90:70 is 9:7. Free ratio calculator with GCD breakdown.
9:7
GCD of 90 and 70 is 10. Simplified: 90/10 : 70/10 = 9:7
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 / 65 | 18:13 |
| 90 / 68 | 45:34 |
| 90 / 69 | 30:23 |
| 90 / 71 | 90:71 |
| 90 / 72 | 5:4 |
| 90 / 75 | 6:5 |
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.