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.
[[18, -38, -140, 17, 84, -138, 89], [-159, 94, -148, -142], [28, -58], [-116, -1, 43, 16], [-107, -98, -109, -41, -197, -79], [-65, -52, 73, -191], [-129, -36, -97]]