Comparison of improper fractions quiz online. This is an interactive quiz in which students test how to compare improper fractions. The secret in comparing improper fractions is to pay attention to the numerators. The larger the numerator the more likely is the fact that the fraction is greater than the other. Another way of doing it is to convert both values to decimals and visually tell which one is larger than the other. This quiz is a multiple choice question quiz. This comparing fractions activity is for children in 3rd, 4th, 5th and 6th grades.