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Simplify 9:81
The simplified ratio of 9:81 is 1:9. Free ratio calculator with GCD breakdown.
1:9
GCD of 9 and 81 is 9. Simplified: 9/9 : 81/9 = 1:9
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.
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.