Question

Maria found the least common multiple of 6 and 15. Her work is shown below. Multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . . Multiples of 15: 15, 30, 45, 60, . . . The least common multiple is 60. What is Maria’s error?

Answer 1

Maria selected a multiple that is not the least of the common multiples

Explanation:

Just took the quiz.

Answer 2

she totally missed seeing the number 30, as 15 x 2 is 30 and 6 x 5 is 30. 30 is her LCM