Answer: 60
Step-by-step explanation:
To find the LCM of 12 and 15 you can list out the multiples.
The multiples of 12 are : 12, 24, 36, 48, 60, 72, 84, ....
The multiples of 15 are : 15, 30, 45, 60, 75, 90, ....
60 is the common multiple between the two numbers so therefore its the answer.