Change mixed numbers to improper fractions. EX 2 1/4 = 9/4 1 whole = 4/4 2 whole = 8/4 8/4 + 1/4 = 9/4 Trick: Multiply the denominator by the whole number ( 4 * 2) Add the numerator 8 + 1 = 9 Put over the denominator 9/4
