Sorry.

If you chose Figure 3, go back and look again. Figure 3 has 24 circles, and 16 of those circles are shaded green.

The greatest common factor (G.C.F.) of 16 and 24 is 8.
16 divided by 8 = 2
24 divided by 8 = 3.
So, 16/24 = 2/3.

Go back to Question 3.