[tex]\Large\boxed{\begin{array}{l}\underline{\rm Divis\tilde ao\,de\,radicais\,de\,mesmo\,\acute indice}\\\sf\sqrt[\sf n]{\sf\dfrac{a}{b}}=\dfrac{\sqrt[\sf n]{\sf a}}{\sqrt[\sf n]{\sf b}}\end{array}}[/tex]
[tex]\Large\boxed{\begin{array}{l}\sf\dfrac{\sqrt{27}}{\sqrt{3}}=\sqrt{\dfrac{27}{3}}=\sqrt{9}=3\end{array}}[/tex]
