Solve this:

Solve this: 4 Find the LCM of the following numbers by common division method. a 40, 80, 120, 160 e 39, 65, 78 b 30, 48, 120 f 51, 102,34 c 72, 108, 144 g 70, 140, 350 d 84, 144,96 h 63, 147.84