Fraction Stories

Josey
There are 2 wrestlers in the ring. The Rock got thrown out of the ring. What fraction of the wrestlers stayed in the ring?

Austin
I had 790 Pokemon cards. I traded a holographic card for 10 junguls. How many Pokemon cards do I have now? What fraction of my cards did I trade?

Brandon T.
There are 7 karate students. They were fighting. 4 got smacked. What fraction got smacked?

Mike
There are 1,000 people at my birthday party. 900 of them left. What fraction left?