Question

Angie painted 1/20 of a fence in 1/2 an hour.How much of the fence can be painted in one hour?

Answer 1

1/10

Explanation:

If she painted 1/20 of a fence in 1/2 hour she can paint another 1/20 of the fence in another 1/2 hour.

1/20 + 1/20 = 2/20 = 1/10