37 parts out of 100 are unshaded. Or more simply, 37/100 or 37 percent.
Count how many parts there are in total (both shaded and unshaded) and write this as the denominator (bottom number) of the fraction. Count how many shaded parts there are and write this as the numerator (top number) of the fraction. You now have the fraction of the whole that is shaded.
75% shaded; 25% unshaded
The shaded parts
numerator
4 and a half
A whole
It is 0.
I suppose that would depend on being able to see the shaded parts of the figures.
Zero
answer
no they don't