Answer :

TSO
Multiples of 12: 12, 24, 36
Multiples of 8: 8, 16, 24

24 is the lcm of 8 and 12
Leader
The multiples of 12 are

12, 24, 36

The multiples of 8 are

8, 16, 24

The LCM of 8 and 12 is 24