Convert ratios to fractions math quiz. This is a mcq math quiz online in which students will learn how to convert ratios into a fraction value. Ratios are representations of proportions usually indicated by the presence of a column sign separating two numbers. Fractions on the other hand contain a numerator and denominator separated by a line. In this exercise students will have to convert ratios to fractions. It is easy and the steps are as follows: add both numbers to get the sum. Then place the first number of the ratio over the sum to get what fraction that expressed ratio represents. Fractions to ratios quiz for 3rd, 4th, 5th and 6th grades.