It is: 120
The LCM is: 57
15
12
30
63
63
It is 12
The LCM is 12.
Since 6 is a multiple of 3, it is automatically the LCM.
The LCM is 40.
if you use "ladder" method you'll see 5 goes into 6,5,and 8. When you divide 5 into 6,5,8 with a remainder of 1,1,and3. Then multiply 5,1,1,and3 and you get 15 as the L.C.M of 6,5,8.
The LCM of 4, 5, and 8 is 40.