the easiest way to solve this is to change the mixed numbers into improper fractions how to do that: multiply the denominator by the whole number and THEN add the numerator to your answer 2 2/4 = 10/4 1 1/2 = 3/2 10/4*3/2*5/*3 numerator: 10*3*5 = 150 denominator: 4*2*3 = 24 numerator/denominator 150/24 = 75/12 = 25/4 or 6 1/4 you need to simplify the fraction to get your final answer