kdnsdfn

18/4 divided by 16/17

$\begin{array}{|rcll|} \hline && \dfrac{ \frac{18}{4} } { \frac{16}{17} } \\\\ &=& \dfrac{ \frac{9}{2} } { \frac{16}{17} } \\\\ &=& \frac{9}{2} \cdot \frac{17}{16} \\\\ &=& \frac{9\cdot 17}{2\cdot 16} \\\\ &=& \frac{153}{32} \\\\ &=& 4\frac{25}{32} \\\\ &=& 4.78125 \\ \hline \end{array}$