How it works
Divide both sides by their greatest common divisor. For A:B = C:D, D = B·C ÷ A.
Ratio Calculator
Simplify a ratio or solve A:B = C:?
Your details
Simplified
2 : 3
As decimal
0.6667
Missing D in A:B = C:D
15
Simplify a ratio or solve A:B = C:?
Divide both sides by their greatest common divisor. For A:B = C:D, D = B·C ÷ A.