Answer :
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{\dfrac{2}{5}}[/tex]
[tex]\mathsf{= \dfrac{2\times2}{5\times2}}[/tex]
[tex]\mathsf{= \dfrac{4}{10}}[/tex]
[tex]\mathsf{\dfrac{2}{5} = 2\div 5 = 0.40 = 0.40\times100 = 40\%}[/tex]
[tex]\mathsf{\dfrac{4}{10} = 4\div 10 = 0.40 = 0.40\times100 = 40\%}[/tex]
[tex]\huge\text{Therefore, your answers are: }\\\huge\boxed{\mathsf{\dfrac{4}{10}}}\\\\\\\huge\boxed{\mathsf{0.40}}\\\\\\\huge\boxed{\mathsf{40\%}}[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]