Question

A pet store donated 50 pounds of food for adult dogs, puppies, and cats to an animal shelter. 19 and 3/4 pounds was adult dog food and 18 and 7/8 pounds was puppy food. How many pounds of cat food did the pet store donate?

Answer 1

50 - (19 3/4 + 18 7/8) = the cat food
50 - (19 6/8 + 18 7/8)
50 - (37 13/8) =
50 - (38 5/8) =
11 3/8 lbs of cat food <==

Answer 2

So first we will add together the fractions. 3/4 is equal to 6/8, so we will add 6/8 to 7/8 and get 13/8, or 1 5/8.  Then we can add together the whole numbers, 19 and 18, to get 37. Then add 37 + 1 5/8 and get 38 5/8. Lastly, we subtract that amount from 50 to get a finale number of 11 3/8. The pet store donated 11 3/8 pounds of cat food! Hope this helps!