begin{enumerate}[(i)]
item  $frac{1}{2}$  text{VS}  displaystyle frac{1}{2}\
item $sum_{k=0}^{n} f(k)$ text{ VS }  displaystyle sum_{k=0}^{n} f(k) \
 item  $int_{1}^{2} f(x)dx$ text{ VS } displaystyle int_{1}^{2} f(x)dx end{enumerate}