Explanation:
this is answered by "how often does 3/4 fit into 3 1/2 ?".
and that is what division is for :
3 1/2 / 3/4
(3×2 + 1)/2 / 3/4
7/2 / 3/4 = (7×4)/(2×3) = 28/6 = 14/3 = 4 2/3
Maddy can make 4 bows.
and she has some tape left, but not enough to make a 5th.