Put 12, 24, 36, 48, 60, 72, 84, 96 and 108 in the left circle. Put 40 and 80 in the right circle. Put 120 in the middle where they intersect.
the LCM of 40 and 12 is 120.
LCM of 12, 24, and 40 = 120
The LCM is 2520.
The LCM is: 840
120
120
120
It is: 600
2280
120
It is: 120
It is 120