The least common multiple (LCM) of 100 and 72 is 1800.
Because 360 is a multiple of 120, so it is automatically the LCM of this problem.
The LCM is 75600.
LCM of 500 & 1200 = 6000
The LCM of 75, 48 is 1200.
The LCM is 1200.
The LCM is 360.
1200 1200/80 = 15 1200/60 = 20
The LCM is 360.
6000
The LCM is 360.
The LCM is 21960.