Gracie has 16 1/2 cups of puppy food. She divides the food equally into five bags and uses all of the food in one of the bags to feed her puppies that she dog-sits. She feeds each puppy 3/10 of a cup of food. How many puppies does Gracie take care of?

16 1/2 = 33/2

(33/2)/5 = 33/10 cups in each bag
(33/10) / (3/10) = 11