The LCM is: 1,260
The LCM is: 2205
The LCM of 45 and 12 is 180.
The LCM is 756.
315
The LCM is 1890.
315
945
315
The LCM of 63 and 45 is: 315
The LCM of 12 and 45 is 180
1575
The LCM is: 630just multiply 90*63 and what i do is go google and look up least common multiple calculator and there you have different options and pick the one that best fits your answer