what is the least common multiple of 9 12 and 18
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1 Answer

9    =  3 * 3

12  =  3 *    2 * 2

15  =  3               * 5

There is a 3 in common.

LCM = 3 times all the other non-common factors

LCM = 3 * 3 * 2 * 2 * 5 = 9 * 20 = 180

by Level 10 User (55.7k points)

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