[tex]1 \ divided \ by \ (- \dfrac{1}{3} )[/tex]
[tex]1/- \dfrac{1}{3} [/tex] [tex]Simplify \ brackets[/tex]
[tex]Apply \ this \ rule: a/ \dfrac{b}{c} =a* \dfrac{c}{b} [/tex]
[tex]1* \dfrac{3}{-1} [/tex]
[tex]-1* \dfrac{3}{1} [/tex]
[tex]= -3
[/tex] [tex]Solution[/tex]