Respuesta :

[tex]\begin{gathered} We\text{ know that } \\ 63=9\cdot7 \\ \\ \text{ thus } \\ 63\colon9\text{ is the same as } \\ \\ \frac{63}{9}\colon\frac{9}{9} \\ \\ 7\colon1 \\ \\ \text{ The new ratio is 7:1} \end{gathered}[/tex]