The simplest form is 11/24.
The shaded area would be 2 because there is a whole square shaded in the the other two are 1/2 so if you add 1/2 together with another 1/2 plus the whole shaded square you would get two.
At least that’s what I understood from the question
F = 41
E = 90
D = 49
from D to E is 55
then E to F also known as X = 36.08 or 41.51