In this task, you are given a list. This list contains many lists of integers. The list is several items written within a []. Your task is to find the maximum number among the members of each inner list. The output should be a list comprised of the maximums with the same order as the internal lists.
[[-25, -138, 96, 12, 61, 84, -64], [-188, 71, 36, -47], [-155, 69, 13]]