Find the LCM of 12 and 15.
Correct: B
To find the LCM of 12 and 15, we first list the multiples of each number. The multiples of 12 are 12, 24, 36, 48, 60,... and the multiples of 15 are 15, 30, 45, 60,... The smallest number that appears in both lists is 60, so the LCM of 12 and 15 is 60.