Probability: Selecting with Replacement

You are serving burgers at a local summer camp. Every $10$ minutes, all of the toppings get replaced. In each replacement batch, there are $53$ green tomato slices and $71$ red tomato slices. After $30$ minutes, what is the probability of you serving someone a hamburger with a green tomato slice (assuming toppings run out every $10$ minutes and everyone gets a burger)?