Can someone help me with this math question?

"There are two gumball machines outside the local grocery store, one large machine and one small. both have pink and blue gumballs and each machine contains 50 percent of each color. for each coin, the large machine dispenses 15 gumballs, where the small machine dispenses 5. Using one coin, which machine is more likely to get a greater percentage of either of the colors, but not an equal amount of each color?