To write in the mixed fraction you have to simply divide 8 and 4.
To right in the mixed number we need to know numerator, denominator and divisor.
So in your problem our divisor is 4,
so now lets divide it
[tex] \frac{8}{4} [/tex]
[tex] = \frac{2}{1} [/tex]
So, now we have to write it as mixed number..
mixed number will be
[tex] 2 \frac{0}{8} [/tex]
Hope this helped you.. :)