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Simplify 42:30
The simplified ratio of 42:30 is 7:5. Free ratio calculator with GCD breakdown.
7:5
GCD of 42 and 30 is 6. Simplified: 42/6 : 30/6 = 7:5
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 |
|---|---|
| 42 / 25 | 42:25 |
| 42 / 28 | 3:2 |
| 42 / 29 | 42:29 |
| 42 / 31 | 42:31 |
| 42 / 32 | 21:16 |
| 42 / 35 | 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.