Easy one!!
[tex] \orange {\boxed{ \boxed{\begin{array}{ll} \hookrightarrow2\times \dfrac{1}{2} \times \dfrac{4}{5} \\\\\\ \hookrightarrow \cancel2\times \dfrac{1}{ \cancel2} \times \dfrac{4}{5} \\\\\\ \pink{\boxed{\hookrightarrow\dfrac{4}{5}}}\end{array}}}}[/tex]
