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Lesson 5.2. 5.2 Multiplying Fractions. Exercise Answers 1. 3__16 2. 3_ _24 = 1_8 3. 5__12 4. 3__15 = 1_5 5. 2__30 = 1__ 15 6. 8__20 = 2_5 7. 4__18 = 2_9 8. 1_2 • 1_2 = 1_4 9. 4_5 • 3_4 = 12 __20= 3_5 10. 1_2 • 3_4 = 3_8 11. 1_6 cup 12. 7__20 of the earth
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Lesson 5.2 5.2 Multiplying Fractions
ExerciseAnswers • 1. 3__16 • 2. 3_ _24 = 1_8 • 3. 5__12 • 4. 3__15 = 1_5 • 5. 2__30 = 1__ 15 • 6. 8__20 = 2_5 • 7. 4__18 = 2_9 • 8. 1_2 • 1_2 = 1_4 • 9. 4_5 • 3_4 = 12 __20= 3_5 • 10. 1_2 • 3_4 = 3_8 • 11. 1_6 cup • 12. 7__20 of the earth • 13. 1 7__12 • 14. 13 __20 • 15. 1 1_2 • 16. 3 2_3 • 17. 10 11__12 • 18. 9 7__1
Warm Up • Draw a model to represent . Find the product. • Draw a model to represent . Find the product. • Write the equation to match the model. • Write the equation to match the model.
Lesson 5.2 Multiplying Fractions Find products of expressions involving two fractions.
Multiplying Fractions Good to Know! The word “of” can mean multiplication. For example, is the same as .
Example 1 Find the value of . Find the product of the numerators and denominators. Simplify.
Example 2 Find the value of .
Example 3 Sandeep had cup of yogurt. She put of the yogurt into a smoothie. What fraction of a cup of yogurt did she use in the smoothie? Write the problem. Divide 4 and 8 by 4. Divide 3 and 9 by 3. Multiply. Sandeep put cup of yogurt in her smoothie. 1 1 3 2
Communication Prompt Do you find it easy to simplify before multiplying fractions or after multiplying fractions? Explain your thinking.
Exit Problems 1. Find the value of . 2. Find the value of . 3. Sandra bought pound of carrots. She used of them for a soup. How many pounds of carrots did she use for the soup? 4. Tyce hit of the baseballs he was pitched during batting practice. Mason hit of the number of pitches that Tyce hit. What fraction of pitches did Mason hit?