Two-thirds of the T-shirts in a T-shirt shop are blue. Three-sevenths of those T-shirts are on sale.
One-half of the blue T-shirts that are on sale are size medium. What fraction of the shop's T-shirts are
blue T-shirts that are on sale and are size medium? Explain.

Twothirds of the Tshirts in a Tshirt shop are blue Threesevenths of those Tshirts are on sale Onehalf of the blue Tshirts that are on sale are size medium What class=