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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. - PowerPoint PPT PresentationTRANSCRIPT
Click the mouse button or press the Click the mouse button or press the Space Bar to display the answers.Space Bar to display the answers.
Objective
Find the least common multiple (LCM) of two or more numbers
Vocabulary
Multiple
The product of a number and any whole number
Vocabulary
Least common multiple (LCM)
The least of two or more number’s common multiples, excluding zero
Example 1 Find the LCM by Listing Multiples
Example 2 Find the LCM Using Prime Factors
Example 3 Find the LCM by Using Prime Factors
Find the LCM of 4 and 6.
Prime factor 4 and 6
Answer: LCM =12
4 62
22
3
Circle the greatest power of each number and multiply
2 2 3
12
1/3
Multiply
Identify as LCMLCM =12
Find the LCM of 8 and 12.
Answer: LCM = 24
1/3
Find the LCM of 4 and 15.
Answer: LCM = 60
Prime factor 4 and 15
4 152
2
3
5
Circle the greatest power of each number and multiply
2 2 3 560
2/3
LCM = 60
Multiply
Identify as LCM
Find the LCM of 6 and 14.
Answer: LCM = 42
2/3
Find the LCM of 18, 24, and 48.
Answer: LCM = 144
Prime factor 18, 24, and 48
18 24 482
933
2122623
224212263
Circle the greatest power of each number and multiply
2
2 2 2 2 3 3
144
3/3
Multiply Identify as LCM
Find the LCM of 12, 20, and 45.
Answer: LCM = 180
*
3/3
Assignment
Lesson 5:7 Least Common Multiple 4 - 20 All