Hey there!
[tex]Answer:\boxed{\frac{2}{5}}[/tex]
[tex]Explanation:[/tex]
[tex]0.4[/tex] as a fraction.
[tex]0.4[/tex] as a fraction would be [tex]\frac{4}{10}[/tex]. Then you would have to simplify which is [tex]\frac{2}{5}[/tex].
[tex]\boxed{\frac{2}{5}}\text{ is the answer.}[/tex]
Hope this helps!
[tex]\text{-TestedHyperr}[/tex]
