Answer:
Not my solution.... the gauthmath app did
BC would equal the same as EF, they are similar. All you would have to do is figure out the pre image (BC) of EF.
Convert the fractions to decimals:
3/5=0.6
4/5=0.8
You have to find 2 fractions between these 2 numbers. You could pick anything.
7/10= 0.7 = less than 0.8 but greater than 0.6
75/100=0.75 = less than 0.8 but greater than 0.6
Hope this helps