Unsure of what you want here. If you want the square of 3 3/8, convert
3 3/8 to 27/8 and square that improper fraction: (27/8)^2 = 729/64.
And so on.
The cube of 3 3/8 is (27/8)^3 = 19683/512. You could also write that as 38.44 (which has been rounded off).
