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4. Example 7-3b Objective Find the least common multiple (LCM) of two or more numbers

5. Example 7-3b Vocabulary Multiple The product of a number and any whole number

6. Example 7-3b Vocabulary Least common multiple (LCM) The least of two or more number’s common multiples, excluding zero

7. Lesson 7 Contents Example 1Find the LCM by Listing Multiples Example 2Find the LCM Using Prime Factors Example 3Find the LCM by Using Prime Factors

8. Example 7-1a Find the LCM of 4 and 6. Prime factor 4 and 6 Answer: LCM =12 462 2 2 3 Circle the greatest power of each number and multiply 2  3 12 1/3 Multiply Identify as LCM LCM =12

9. Example 7-1b Find the LCM of 8 and 12. Answer: LCM = 24 1/3

10. Example 7-2a Find the LCM of 4 and 15. Answer: LCM = 60 Prime factor 4 and 15 4152 2 3 5 Circle the greatest power of each number and multiply 2  3  5 60 2/3 LCM = 60 Multiply Identify as LCM

11. Example 7-2b Find the LCM of 6 and 14. Answer: LCM = 42 2/3

12. Example 7-3a Find the LCM of 18, 24, and 48. Answer: LCM = 144 Prime factor 18, 24, and 48 1824482 93 3 2 12 2 6 2 3 2 24 2 12 2 6 3 Circle the greatest power of each number and multiply 2 2  2  2  2  3  3 144 3/3 Multiply Identify as LCM

13. Example 7-3b Find the LCM of 12, 20, and 45. Answer: LCM = 180 * 3/3

14. End of Lesson 7 Assignment Lesson 5:7Least Common Multiple4 - 20 All