A recipe for 1 1/5 dozen pancakes calls for 2 1/3 cups of milk. How many cups are needed to make 1 1/10 dozen pancakes? Answer as a mixed number

How do you get 1/5th or 1/10th of a dozen, which is 12?

1/10th of a dozen = 1 1/5th
Really? One-fifth of a pancake??