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Simplify 40:80
The simplified ratio of 40:80 is 1:2. Free ratio calculator with GCD breakdown.
1:2
GCD of 40 and 80 is 40. Simplified: 40/40 : 80/40 = 1:2
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 |
|---|---|
| 40 / 75 | 8:15 |
| 40 / 78 | 20:39 |
| 40 / 79 | 40:79 |
| 40 / 81 | 40:81 |
| 40 / 82 | 20:41 |
| 40 / 85 | 8:17 |
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.