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.
[[70, -27, -68, 73, 60, 41], [98, -117, -181, -143], [-67, -73, -21]]