159635

Section 1
He has 44 left on the first day, on day 2 he had 27 left , on day 3 he had 14, on day 4 he had 3 left, on day five he only had 1 left

Part 2
11/15, 5/6, 3/4, 1/2, 3/5, 1/4

Part 3
3/4, 1/2, 7/9, 5/9, 5/7,2/3, 4/5, 1/4 starting with 100