Tina is organizing a contest for her friends. The winner of the contest can pick two movie tickets out of a bag without looking. The bag contains movie tickets to Cinema 16 and movie tickets to Cinema 25. There are five more Cinema 25 tickets than Cinema 16 tickets. Write and simplify an expression that represents the probability that the winner will pick two Cinema 16 tickets. What is the probability that the winner picks two Cinema 16 tickets if there are 8 Cinema 16 tickets in the bag before her first pick? Round your answer to the nearest hundredth.