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.
[[-40, 67, -6, 31, 93, 48], [19, 71, -199, -149], [-53, -103], [-16, -72, 47, -48, -82, 23, -88], [-156, -27, 53, 28, -60, 21]]