Rebecca's soup recipe calls for 3/4 cup milk.
She needs 3 times as much milk to make a triple batch of soup.
How many cups of milk does Rebecca need?
Since 1 batch of soup required 3/4 cup of milk then 3 batches of soup will require 3 times of 3/4 cup of milk.
Which can be also be written as
Therefore, she needs 9/4 cups of milk or 2 and one-fourth cups of milk.