What is the value of t?

Katlyn made 4 dresses with 7 yards of fabric. how many yards did she use on 1 dress?

What is the sum of these mixed numbers 2 1/8 + 4 3/8

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?