The complete question is
Zach has 3/4 hour to play video games. it takes him 1/12 hour to set up the system. Each round of his favorite game takes 1/6 hour. How many rounds can he play
we know that
1) Zach has hour to play video games
Convert to minutes
2) It takes him hour to set up the system
Convert to minutes
3) Find time available to play video games
4) Each round of his favorite game takes hour
Convert to minutes
5) Divide the time available to play video games by the time each round of his favorite game
therefore
<u>the answer is</u>