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Transparency 7. Click the mouse button or press the Space Bar to display the answers. Splash Screen. Example 7-3b. Objective. Find the least common multiple (LCM) of two or more numbers. Example 7-3b. Vocabulary. Multiple. The product of a number and any whole number. Example 7-3b.

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  1. Transparency 7 Click the mouse button or press the Space Bar to display the answers.

  2. Splash Screen

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

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

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

  6. 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

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

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

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

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

  11. Example 7-3a Find the LCM of 18, 24, and 48. Prime factor 18, 24, and 48 2 18 24 48 2 2 3 9 12 2 24 2 3 12 6 2 2 3 6 2 3 Circle the greatest power of each number and multiply 2  2  2  2  3  3 Multiply Identify as LCM Answer: LCM = 144 144 3/3

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

  13. End of Lesson 7 Assignment

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