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09-01-2019
Mathematics

contestada

Which is the least common multiple of (LCM)of three and seven

A.3

B.7

C.10

D.21

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09-01-2019

Answer:

D. 21

Step-by-step explanation:

Find multiples of both 3 and 7.

3: 3, 6, 9, 12, 15, 18, 21, etc.

7: 7, 14, 21, etc.

Note that both numbers have a multiple of 21 (that first shows up), and so 21 is your answer

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