Each of these numbers will go evenly into 75: 1, 3, 5, 15, 25, 75.
75 ÷ 3 = 25
How many times can 75 go into 637
75 - 13 = 62
75 -13 = 62
13 and 1/3 times
630/75 = 8.4
13 if you include the '75', 12 if you don't.
5 can go into 75 15 times
75/4 = 18.75
13/75
88 = 75 + 13