Warm Up Problem Natalie had 1 2 of the lawn left to mow. On Saturday, she mowed 2 3 of what was left. What fraction of the entire lawn did Natalie mow on Saturday?

Divide Mixed Numbers Lesson 4-8

Objectives I can divide mixed numbers. I can convert a mixed number to an improper fraction.

Example 1 Find 1 3 4 ÷ 2 5 . Write the mixed number as an improper fraction. 1 3 4 = 7 4 Find the reciprocal of the divisor and multiply. 7 4 x 5 2 = 35 8 Simplify. 35 8 = 4 3 8

Example 2 Find 3 3 4 ÷ 4 5 . Convert the mixed number to an improper fraction. 3 3 4 = 15 4 Find the reciprocal of the divisor and multiply. 5 4 x 15 4 = 75 16 Simplify. 75 16 = 4 11 16

Got It? 1) 2 3 8 ÷ 1 4 2) 2 1 2 ÷ 3 7 3) 5 5 8 ÷ 3 4

Example 3 Find 5 1 2 ÷ 2 1 2 . Write both mixed numbers as improper fraction. 5 1 2 = 11 2 2 1 2 = 5 2 Find the reciprocal of the divisor and multiply. 1 2 5 x 11 1 2 = 11 5 Simplify. 11 5 = 2 1 5

Example 4 Find 4 2 3 ÷ 1 3 4 . Write both mixed numbers as improper fractions. 4 2 3 = 14 3 1 3 4 = 7 4 Find the reciprocal of the divisor and multiply. 4 1 7 x 2 14 3 = = 8 3 Simplify. 8 3 = 2 2 3

Got It? 4) 4 1 5 ÷ 2 1 3 5) 8÷2 1 2 6) 1 5 9 ÷2 1 3

Example 5 The average adult male Giant Panda weighs about 1 1 5 times as much as the average adult female. If the average weight of a male Giant Panda is 330 pounds, how much does the average female weigh? Solve: 330 ÷ 1 1 5 55 330 1 x 5 1 6 = 275 1 or 275 pounds

Got It? 7) The soccer team has 16 1 2 boxes of wrapping paper left to sell. If each of the 12 players sells the same amount, how many boxes should each player sell?