Just wondering if you could check my answer to this question.

Tell whether problem can be solved by using GCF or LCM. Then solve.

Sean has 8inch pieces of toy train track and Ruth has 18 inch pieces of train track. How many of each piece would each child need to build tracks that are equal in length?

Answer: LCM, 72 pieces
8: 8,16,24,32,49,48,56,64,72
18: 18,36,54,72

You're right.

You have a typo in one of the multiples of 8. But your final answer is correct.