Answer:
Fraction of the shop speakers are blue t-shirts that are on sale and are size medium =

Explanation:
Let T be the number of T shirts in the shop.
Three fifths of the t-shirts in a T-shirt shop are blue.

5/8 of those blue t shirts are on sale,

1/3 of the blue t-shirts that are on sale are size medium,

Fraction of the shop speakers are blue t-shirts that are on sale and are size medium =
