Respuesta:
27/512
Explicación paso a paso:
[tex]((\frac{3}{8})^{4})^{2}:(\frac{3}{8})^{5}\\\\(\frac{3}{8})^{8}:(\frac{3}{8})^{5}\\\\(\frac{3}{8})^{3}\\\\\frac{27}{512}[/tex]
