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.
[[-59, -39, -20, -104], [-149, -108], [-188, 28, -105, -46], [-21, -40, -79, -99, -85], [-16, -139, 99], [-116, -154, 81, 21, -41], [58, 87, 55, -72, -4, -159, -70]]