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Simplify 18:42
The simplified ratio of 18:42 is 3:7. Free ratio calculator with GCD breakdown.
3:7
GCD of 18 and 42 is 6. Simplified: 18/6 : 42/6 = 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 |
|---|---|
| 18 / 37 | 18:37 |
| 18 / 40 | 9:20 |
| 18 / 41 | 18:41 |
| 18 / 43 | 18:43 |
| 18 / 44 | 9:22 |
| 18 / 47 | 18:47 |
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.