Question

How much of the circle is shaded? Write your answer as a fraction in simplest form.

Answer 1

I think it's 5/21.

Explanation:

1/3=7/21

3/7=9/21

7/21+9/21=16/21

21/21-16/21=5/21

5/21 can't be reduced.

5/21+7/21+9/21=21/21 or 1