Answer:
4+(1/2) hour
Step-by-step explanation:
From the attached picture, Ella has already practiced 4 whole hours as well as 5 half hours. This time should be subtracted from the 11 hours that she wants for total practice.
We can begin by subtracting the 4 full hours from 11 as (11-4)=7
Next we look at the half hours where we have 5 half hours. This is equal to 2 full hours and 1 half hour. We can therefor further subtract 2 full hours from the remaining 7 hours which results in (7-2) =5 hours.
Finally remains to subtract the last half hour from the 5 remaining hours to give the final result of (5-(1/2)) = 4+(1/2) hours.
