There are 18

circles. Separate the circles into 6 equal groups to find 5/6 x 18

.

3 rows of 6 circles.

In this case, each row of circles represents a group. So we have 3 groups of 6 circles each.

To find 5/6 x 18, we need to calculate 5/6 of the total number of circles.

5/6 x 18 = (5/6) x (3 groups of 6 circles) = 15 circles.

Therefore, 5/6 x 18 is equal to 15 circles.