Which of the following will convert a fraction to a decimal?

Divide the numerator by the denominator.
Divide the denominator by the numerator.
Divide the denominator by 100.

Several paint mixtures are made by mixing blue paint and white paint. paint colors blue paint white paint mixture a 5 cups 12 cups mixture b 6 cups 6 cups mixture c 4 cups 12 cups mixture d 5 cups 6 cups which mixture has the highest ratio of blue paint to white paint