Sean bought 68 3/4 inches of rope . how many 15-inches ropes can he make from it

Length of rope bought by Sean = 68 3/4 inches
                                                   = 275/4 inches
Then
The number of 15 inch rope that can be made by Sean = (275/4)/15
                                                                                         = 275/(4 * 15)
                                                                                         = 275/60
                                                                                         = 4.58
So we can see from the above deduction that Sean can make 4 complete 15 inches ropes and there will be 0.58 inches of rope excess. I hope the procedure and the method of solving is absolutely clear to you. This is the easiest way to get to the solution for such problems.

Ava is 112 cm  olivia is 89 cm