48/3 = 16/1
489 is an integer, and so there is not a sensible way of representing it as a mixed number.
3 4/8 is a mixed number.
3 over 4. There is no mixed number
112 over 3 as a mixed number = 371/3
146 over 3 as a mixed number = 482/3
50 over 3 as a mixed number = 162/3
The mixed number for 11 over 3 is 32/3
The mixed number of 83 over 3 = 272/3
48/12 is 4, so there is no reason to express it as a mixed number. however, I suppose you could do 3 and 1/1. however, that is just silly and unnecessary. 4 is the best answer in my opinion.
The mixed number of 23 over 3 is 72/3
3/16 can't be a mixed number however 16/3 as a mixed number is 51/3 if that's what you meant?
14 over 3 as a mixed number = 42/3