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.
[[83, -175, 69, -177], [-22, 21], [-158, -51, 27], [-66, -134, 15, -29, 77], [46, -112, -153], [81, 27, 41, 64]]