Cameron mixed 1/4 cup lemon juice, 3/4 cup orange juice, and 2 1/4 cup water to make some fruit punch. He was serving 13 people. How many cups of fruit punch did he make?

He made 3 1/4 total cups of fruit punch

to get this answer you would add 1/4 + 3/4 = 1 cup

then 1 + 2 = 3

finally adding 3 + 1/4 = 3 1/4 total cups of fruit punch

(Hope this makes since : D)