1. 5-7 Multiplying Mixed Numbers Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes Lesson Quizzes

2. 5-7 Multiplying Mixed Numbers Warm Up Multiply. 1.2. 3. 4. 3 8 __ 5 8 2 4 5 __ 3 8 3 11 __ 1 2 1 3 1 6 __ 3 10 __ 6 11 __ 15 64 __

3. 5-7 Multiplying Mixed Numbers Problem of the Day Tracy and Zachary are sharing a large pizza. Tracy cuts the pizza in half. Zachary says he cannot eat that much. Zachary cuts his half into fourths and eats one piece. What fraction of the whole pizza does Zachary not eat? 7 8 __

4. 5-7 Multiplying Mixed Numbers To write a mixed number as an improper fraction, start with the denominator, multiply by the whole number, and add the numerator. Use the same denominator. Remember! 1 5 __ 1 1 5 + 1 5 _________ 6 5 __ = =

5. 5-7 Multiplying Mixed Numbers Additional Example 1A: Multiplying Fractions and Mixed Numbers Multiply. Write each answer in simplest form. 1 1 4 __ 1 3 Write 1 as an improper fraction. 1 = 4 3 __ 1 3 1 3 1 4 4 3 1 4 4 3 _____ Multiply numerators. Multiply denominators. 4 12 __ 1 3 Write the answer in simplest form.

6. 5-7 Multiplying Mixed Numbers Additional Example 1B: Multiplying Fractions and Mixed Numbers Multiply. Write each answer in simplest form. 3 1 2 __ 4 5 Write 3 as an improper fraction. 3 = 7 2 __ 1 2 1 2 7 2 4 5 7 4 2 5 _____ Multiply numerators. Multiply denominators. 28 10 __ 14 5 __ You can write the answer as a mixed number. 4 5 __ = 2

7. 5-7 Multiplying Mixed Numbers Additional Example 1C: Multiplying Fractions and Mixed Numbers Multiply. Write each answer in simplest form. 2 12 13 __ 3 8 Write 2 as an improper fraction. 2 = 19 8 __ 3 8 3 8 12 13 __ 19 8 __ 3 19 13 2 ______ Use the GCF to simplify before multiplying. 57 26 __ You can write the answer as a mixed number. 5 26 __ = 2 3 2 12 13 __ 19 8 __

8. 5-7 Multiplying Mixed Numbers Check It Out: Example 1A Multiply. Write each answer in simplest form. 2 3 __ 5 6 8 3 5 6 40 18 __ 20 9 __ 2 2 9 2or

9. 5-7 Multiplying Mixed Numbers Check It Out: Example 1B Multiply. Write each answer in simplest form. 1 4 __ 2 9 9 4 _ 2 9 _ 2 4 _ 1 2 _ 2

10. 5-7 Multiplying Mixed Numbers Check It Out: Example 1C Multiply. Write each answer in simplest form. 3 5 __ 1 6 18 5 __ 1 6 _ 18 30 __ 3 5 _ 3

11. 5-7 Multiplying Mixed Numbers You can estimate the product to see whether your answer is reasonable. Remember!

12. 5-7 Multiplying Mixed Numbers Additional Example 2A: Multiplying Mixed Numbers Find each product. Write the answer in simplest form. 1 2 2 3 __ 1 7 5 3 15 7 __ 5 15 3 7 ______ Multiply numerators. Multiply denominators. 75 21 __ 12 21 __ You can write the improper fraction as a mixed number. Write the mixed numbers as improper fractions. 1 = 2 = 5 3 __ 15 7 __ 2 3 1 7 3 Simplify. 4 7 __ 3

13. 5-7 Multiplying Mixed Numbers Additional Example 2B: Multiplying Mixed Numbers Find each product. Write the answer in simplest form. 1 2 3 8 __ 2 5 11 8 __ 12 5 __ 11 3 2 5 ______ Use the GCF to simplify before multiplying. 33 10 __ Multiply numerators. Multiply denominators. Write the mixed numbers as improper fractions. 1 = 2 = 11 8 __ 12 5 __ 3 8 2 5 Write the answer as a mixed number. 3 10 __ 3 11 8 __ 12 5 __ 3 2

14. 5-7 Multiplying Mixed Numbers Additional Example 2C: Multiplying Mixed Numbers Find each product. Write the answer in simplest form. 2 4 2 5 __ Use the Distributive Property. Add. 4 5 __ 8 + 2 4 2 5 __ 2 (4 + ) 2 5 __ (2 4) + ( 2 ) 2 1 __ Multiply. (2 4) + ( ) 2 5 __ 2 5 4 5 8

15. 5-7 Multiplying Mixed Numbers Check It Out: Example 2A Find each product. Write each answer in simplest form. 1 2 3 4 __ 1 6 7 4 13 6 __ 91 24 __ 19 24 __ 3

16. 5-7 Multiplying Mixed Numbers Check It Out: Example 2B Find each product. Write each answer in simplest form. 3 2 2 3 __ 1 4 11 3 __ 9 4 99 12 __ 1 4 8 33 4 __

17. 5-7 Multiplying Mixed Numbers Check It Out: Example 2C Find each product. Write each answer in simplest form. 3 2 1 8 __ 2 3 25 8 __ 8 3 25 3 __ 1 3 8

18. 5-7 Multiplying Mixed Numbers Standard Lesson Quiz Lesson Quizzes Lesson Quiz for Student Response Systems

19. 5-7 Multiplying Mixed Numbers Lesson Quiz Multiply. Write each answer in simplest form. 1. 32. 1 Find each product. Write the answer in simplest form. 3. 2 14. 5 3 5. A nurse gave a patient 3 tablets of a medication. If each tablet contained grain of the medication, how much medication did the patient receive? 2 5 8 __ 1 5 5 7 __ 7 10 __ 1 4 __ 1 5 1 5 16 1 2 __ 1 20 __ 1 3 14 __ 2 3 4 grain 7 40 __

20. 5-7 Multiplying Mixed Numbers 1. Multiply and identify the answer in simplest form. A. 1 C. 3 B. 2 D. 4 Lesson Quiz for Student Response Systems

21. 5-7 Multiplying Mixed Numbers 2. Multiply and identify the answer in simplest form. A. C. B. D. Lesson Quiz for Student Response Systems

22. 5-7 Multiplying Mixed Numbers 3. Multiply and identify the answer in simplest form. A. C. B. D. Lesson Quiz for Student Response Systems

23. 5-7 Multiplying Mixed Numbers 4. Multiply and identify the answer in simplest form. A. 15C. 17 B. 16D. 18 Lesson Quiz for Student Response Systems

24. 5-7 Multiplying Mixed Numbers 5. Rita used pounds of vegetables for cooking. If each pound of vegetables contains pound of proteins, how much protein is in the meal? A. C. B. D. Lesson Quiz for Student Response Systems