A truck enters a highway driving 60 mph. A car enters the highway at the same place 8 minutes later and drives 75 mph in the same direction. From the time the car enters the highway, how long will it take the car to pass the truck (in minutes)?

60(t+8/60) = 75(t/60)

If the equation is correct, I still can't solve it because I am unsure of how to do the fractions... Please help!