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What’s the least common multiple of each group of numbers? A. 5 and 6 b. 2 and 9 c. 6 and 8 d. 2, 5, and 6

2 Answers

2 votes

Answer:

A) 30

B) 18

C) 24

D) 30

Explanation:

User Tommarshall
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For this case we have that by definition, the LCM of two or more natural numbers is the smallest natural number that is a common multiple of all of them.

So:

A. 5 and 6

The LCM of 5 and 6 is the smallest positive integer that divides the numbers 5 and 6 without leaving a residue.

multiples:

5: 10,15,20,25,30,35,40,45

6: 12,18,24,30,36


LCM = 30

B. 2 and 9

Multiplos:

2: 4,6,8,10,12,14,16,18

9: 18,27


LCM = 18

C. 6 and 8

6: 12,18,24,30,36

8:16, 24


LCM = 24

D. 2,5 and 6

Multiplos:

2: 4,6,8,10,12,14,16,18 ..., 30

5: 10,15,20,25,30,35,40,45

6: 12,18,24,30,36


LCM = 30

Answer:

a.30

b.18

c.24

d.30

User Johnjohn
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