⚡
Simplify 30:70
The simplified ratio of 30:70 is 3:7. Free ratio calculator with GCD breakdown.
3:7
GCD of 30 and 70 is 10. Simplified: 30/10 : 70/10 = 3:7
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 |
|---|---|
| 30 / 65 | 6:13 |
| 30 / 68 | 15:34 |
| 30 / 69 | 10:23 |
| 30 / 71 | 30:71 |
| 30 / 72 | 5:12 |
| 30 / 75 | 2:5 |
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.