Answer:
3/4 into decimal = 0.75
0.75 X 100 = 75
2 X 100 = 200
200/75 = 2.66666666
y⁷/x⁵ , I hope this helps
fans bought 5/8 so there is 3/8 still left
45000 * 3/8 = 16,875 seats are left