Respuesta :

the ratio of 8 books to 20 books is:

[tex]8\colon20[/tex]

now we can divide by the same number so:

[tex]\begin{gathered} \frac{8}{2}\colon\frac{20}{2} \\ \frac{4}{2}\colon\frac{10}{2} \\ 2\colon5 \end{gathered}[/tex]

SO is option A)

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