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Simplify 100:40
The simplified ratio of 100:40 is 5:2. Free ratio calculator with GCD breakdown.
5:2
GCD of 100 and 40 is 20. Simplified: 100/20 : 40/20 = 5:2
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 |
|---|---|
| 100 / 35 | 20:7 |
| 100 / 38 | 50:19 |
| 100 / 39 | 100:39 |
| 100 / 41 | 100:41 |
| 100 / 42 | 50:21 |
| 100 / 45 | 20:9 |
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.