[tex]\bf \cfrac{6}{~~\frac{2}{3}~~}\implies \cfrac{\frac{\stackrel{}{6}}{1}}{~~\frac{2}{3}~~}\implies \cfrac{\stackrel{3}{~~\begin{matrix} 6 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}{1}\cdot \cfrac{3}{~~\begin{matrix} 2 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}\implies 9[/tex]
