LCM B1

Find the LCM of 30 and 66.

Solution 

2	30	66
3	15	33
5	5	11
11	1	11
	1	1

LCM = 2 X 3 x 5 x 11

       = 30 x 11  (because 2 X 3 x 5=30)

       = 330

Hence LCM is 330

TRY THIS.............

Find the LCM of 40 and 64.