⚡
Simplify 420:84
The simplified ratio of 420:84 is 5:1. Free ratio calculator with GCD breakdown.
5:1
GCD of 420 and 84 is 84. Simplified: 420/84 : 84/84 = 5:1
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 |
|---|---|
| 420 / 79 | 420:79 |
| 420 / 82 | 210:41 |
| 420 / 83 | 420:83 |
| 420 / 85 | 84:17 |
| 420 / 86 | 210:43 |
| 420 / 89 | 420:89 |
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.