
Step-by-step explanation
Step 1
the shaded area is equal to
shaded area = total circle -not shaded area
a) the full circle equals 1 ( one unit)
b) let x represents the shaded area
c) the not shaded area is the sum of 2/5 and 1/3
Now , rewrite the expression

Step 2
Now, let's calculate

now, the subtraction

therefore, the answer is

I hope this helps you