1. Find the LCM of the following.
(a) 12, 36
(b) 15, 18
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Answer:
To sum up, the lcm of 12 and 13 is 156. In common notation: lcm (12,13) = 156.The common factors in (3*5) and (2*3*3) is 3, and it is the highest common factor also, as no other factor higher than 3 divide both 15 and 18 together. Therefore LCM (15,18) = (15/3)18 = 90.
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Answer:
a)the l.c.m is 36;b)the l.c.m is 90
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