Question 498551
Add the fractions you know by finding the least common denominator and then adding the numerators and the denominators together. The LCD is 15. So add 5/15 to 6/15.  The unshaded portion is 11/15.  The whole is one; write one as 15/15. Subtract the unshaded portion from the whole to get the shaded portion.  
15/15-11/15=4/15.  Just a touch less ahan one third of the circle is shaded.