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Simplify 100:20
The simplified ratio of 100:20 is 5:1. Free ratio calculator with GCD breakdown.
5:1
GCD of 100 and 20 is 20. Simplified: 100/20 : 20/20 = 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 |
|---|---|
| 100 / 15 | 20:3 |
| 100 / 18 | 50:9 |
| 100 / 19 | 100:19 |
| 100 / 21 | 100:21 |
| 100 / 22 | 50:11 |
| 100 / 25 | 4:1 |
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.