How would you write this using a single positive exponent?

Given
[tex]-4\div-\frac{8}{11}[/tex]Find
Write this using a single positive exponents
Explanation
as we have given
[tex]\begin{gathered} -4\div-\frac{8}{11} \\ \\ -4\times(-\frac{11}{8}) \\ (\frac{11}{2}) \\ \end{gathered}[/tex]Final Answer
Hence the required answer is
[tex]\frac{11}{2}[/tex]