[tex]\bf \left( \cfrac{1}{2}\cdot \cfrac{3}{4} \right)\div \cfrac{5}{8}\implies \left( \cfrac{3}{8} \right)\div \cfrac{5}{8}\implies \cfrac{3}{~~\begin{matrix} 8 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}\cdot \cfrac{~~\begin{matrix} 8 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{5}\implies \cfrac{3}{5}[/tex]
