to write this number as a mixed number we should write 23 as the maximum multiple of 4 it can be and the remaining, in this case is 20.
[tex]\frac{20+3}{4}[/tex]now if we divide 20 by 4 there are 5 wholes and the remaining 3/4 will be next to the whole portion
[tex]5\frac{3}{4}[/tex]