Use reasoning to lead to the answer of the following question:
Abigail is trying a new recipe for a cold drink. It uses 1/4 of a cup of iced tea and 1 and 1/4 of a cup of lemonade to make one drink. If she fills a pitcher with 18 total cups of this drink, how many cups of lemonade are in the pitcher?

15
Each drink uses 1.

5 cups because 1 / 4 cup + 1 and 1 / 4 cup = 1.

5 cups.

The pitcher contains 12 total drinks because 18 / 1.

5 = 12.

There are 15 cups of lemonade in the pitcher because 12 x 1 and 1 / 4 = 15.

.

So, the final answer is 15