Fractions and Decimals Lesson 18 Fractions and Decimals Multiplying and Dividing Fractions and Whole Numbers

Warm-Up Estimate the answer to each problem using compatible numbers.

Multiplying and Dividing Fractions and Whole Numbers Target: Find products or quotients of expressions that include fractions and whole numbers.

Multiplying or Dividing Fractions and Whole Numbers Write the whole number as a fraction with a denominator of 1. Multiply or divide. Write the answer in simplest form.

Example 1 Five-eighths of Michael’s pitches in his last baseball game were strikes. If he threw 88 pitches, how many of those were strikes? Write the problem. Write the whole number as a fraction. Cancel and multiply. Fifty-five of Michael’s pitches were strikes. 11 1

Example 2 Find . Write the whole number as a fraction. Divide.

Example 3 Kaelani needed 3 cups of chocolate chips to make cookies. She only had a cup measure. How many cup measures would she need to make 3 cups? Write the problem. Write the whole number as a fraction. Divide. Kaelani needs twelve cups to equal 3 cups.

Exit Problems Find the value of . Find the value of . Merlyn had 22 magic tricks to perform. He had completed of them when the fire alarm sounded. How many magic tricks had he performed? Carlen uses cup of pineapple for each smoothie. She has 5 cups of pineapple ready. How many smoothies can she make?

Communication Prompt How you would solve ?