An unopened bag of candy weighed 5 1/2 lb. After opening the bag and eating some of the candy, the bag weighed 2 1/4 lb. How many pounds of candy were eaten?
1 1/4 lbs of the candy was eaten. 5 1/2 becomes the improper fraction 11/2 and 2 1/4 becomes the improper fraction 9/4. After subtraction, you get 13/4, or 1 1/4.