[tex]\tt{Hey~there![/tex]
[tex]\tt{Let's~write~-0.4~as~a~fraction~in~simplest~form.[/tex] [tex]\tt{In~order~to~do~that,~you~have~to~the~right~of~the~decimal~over~10.~Then,~you~have~to[/tex][tex]\tt{reduce.[/tex]
[tex]\tt{-0.4\rightarrow\frac{-2}{5}[/tex]
[tex]\boxed{\tt{\frac{-2}{5}}}[/tex]
[tex]\tt{Hope~this~helps![/tex]
[tex]\boxed{\tt{-TestedHyperr}}[/tex]