What’s 16/4 turned into a mixed number

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?

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles

What is the missing step in this proof ?