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12 February, 04:41

What is the LCM of 18 and 24?

A.

6

B.

36

C.

48

D.

72

+2
Answers (2)
  1. 12 February, 04:46
    0
    To find LCM, multiply two number by 1, 2, 3 ..., find the least number that can multiply by both. If you can't find the LCM when you multiply the numbers, just keep multiply until you get LCM

    18: 18, 36, 54, 72, 90, ...

    24: 24, 48, 72, 96, 120, ...

    We see that 18*4 = 72 and 24*3 = 72, 72 is the smallest number that can multiply by both so D. 72 is the LCM of 18 and 24
  2. 12 February, 05:04
    0
    LCM is the lowest common multiple.

    D. 72
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