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.

[[-170, -178, 80, 58, -146], [-53, -124], [28, -12, -60, -20, -70, 13]]
[80, -53, 28]