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.
[[-140, -47, -164, 64, -80], [-58, -189, -164, 18, -110, 2], [-117, -196, -116, 76, -65, 45, -64]]