Respuesta :

[tex]x:y=x\cdot\frac{1}{y}\\\\140=\frac{140}{1}\\\\therefore\\\\140:\frac{7}{8}=\frac{140}{1}\cdot\frac{8}{7}=\frac{20}{1}\cdot\frac{8}{1}=\frac{160}{1}=\boxed{160}[/tex]