The LCM is 42.
42 is the LCM of 3, 6 and 7. All multiples of 42 are multiples of 3, 6 and 7
The common multiples of 6, 7, and 8 are the multiples of its least common multiple, which is 168.The LCM of 6, 7, and 8 is 168.168, 336, 504 and so on.
The lowest common multiple of the two numbers is 42. All multiples of 42 are common multiples of 6 and 7. So the common multiples of 6 and 7 are 42, 84, 126, 168, 210, 252, 294, 336, and so on.
Odd multiples of 21.
2, 12, 6, 7 are common multiples of 24 and 42
42 is one of them. The next would be 84.
You multiply 6, 7, and 8 until all answers are the same. For example, the common multiples of 3 and 7 would be 21, because: 3,6,9,12,15,18,21 7,14,21 See how they both have the common multiples? Hope this helped!
It is: 42
42
6
The First common multiple of 6 and 7 is 42 and the next common multiple is 84.