Express the given numbers as fraction, where the first number is the numerator and the second number is the denominator. Then simplify, or express in lowest terms.
Example: !2 slices of pizza is to 3 boys. What is the ratio of slices of pizza to boys?
12 = 4
Therefore, the ratio of slices of pizza to boys is "4:1". It means that there are four slices of pizza for every boy.