$\frac{3}{3}$ \begin{minipage}{.5\textwidth}
\begin{tikzpicture}
\draw (0,0) -- (4,0) -- (4,2) -- (0,2) -- cycle;
\draw (0,0) -- (-1,0);
\draw (4,0) -- (5,0);
\draw (0,2) -- (-1,2);
\draw (4,2) -- (5,2);
\draw (1,1.5) -- (3,1.5);
\draw (1,0.5) -- (3,0.5);
\draw (0.5,1) -- (0.5,0);
\draw (3.5,1) -- (3.5,0);
\draw (1,1.5) -- (1,0.5);
\draw (3,1.5) -- (3,0.5);
\node at (2,1) {$9$};
\node at (4.5,1.5) {$8$};
\node at (0.5,1) {$\frac{4}{3}$};
\node at (3.5,1) {$\frac{6}{3}$};
\node at (2,0.75) {$-\frac{2}{3}$};
\end{tikzpicture}
\end{minipage}
