30,60,90
The way to solve this is as follows:Find the least common multiple of the two numbers.Multiply this least common multiple by 2 and by 3, to get the next two common multiples.
117, 234 and 351
65, 130, 195
The Least Common Multiple (LCM) of (54,63) is 378.
15
12
12
33
It is: 6
6
24.
Multiply them together.