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Simplify 78:20
The simplified ratio of 78:20 is 39:10. Free ratio calculator with GCD breakdown.
39:10
GCD of 78 and 20 is 2. Simplified: 78/2 : 20/2 = 39:10
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 |
|---|---|
| 78 / 15 | 26:5 |
| 78 / 18 | 13:3 |
| 78 / 19 | 78:19 |
| 78 / 21 | 26:7 |
| 78 / 22 | 39:11 |
| 78 / 25 | 78:25 |
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.