math
posted by Lis .
Dylan loved pencils. He had a whole box full of pencils in different colors and designs. Oneseveth of them were yellow, onesixth of them were blue, and the rest of the pencils had designs on them. What fraction represents the pencils with designs on them?

1/7 = 6/42
1/6 = 7/42
6/42 + 7/42 = 13/42
42/42 = 13/42 = 29/42