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Simplify 420:8
The simplified ratio of 420:8 is 105:2. Free ratio calculator with GCD breakdown.
105:2
GCD of 420 and 8 is 4. Simplified: 420/4 : 8/4 = 105:2
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 / 3 | 140:1 |
| 420 / 6 | 70:1 |
| 420 / 7 | 60:1 |
| 420 / 9 | 140:3 |
| 420 / 10 | 42:1 |
| 420 / 13 | 420:13 |
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.