Jenny has a box that weighs one pound. The box had three toys in it. The first toy weighs 3/5 of a pound. The second toy weighs 1/5 of a pound. What fraction of a pound does the third toy weigh?

Answer 1

1 -3/5 - 1/5 = 5/5 - 3/5 -1/5 = 2/5 - 1/5 = 1/5