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Simplify 30:80
The simplified ratio of 30:80 is 3:8. Free ratio calculator with GCD breakdown.
3:8
GCD of 30 and 80 is 10. Simplified: 30/10 : 80/10 = 3:8
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 |
|---|---|
| 30 / 75 | 2:5 |
| 30 / 78 | 5:13 |
| 30 / 79 | 30:79 |
| 30 / 81 | 10:27 |
| 30 / 82 | 15:41 |
| 30 / 85 | 6:17 |
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.