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.
[[-63, -186, -73, -48], [-133, -18], [-46, -33], [-56, -199, -107], [-129, -110, -176, -75, 85, 60], [-128, -113, -47], [-151, -97, 69]]