You would have 22 full 10oz portions.
First you have to multiply 16 by 14, because there are 16oz in one pound and there is 14 pounds. You do this to convert it into ounces. When you do this you get 224.
Now you have to divide it by 10, because you want to find out how many portions you can have. When you do this you get 22 portions. There will be 4oz left over.