You can see 84.78 as [tex]\frac{84.78}{1}[/tex].
So, you can see the problem as [tex]\frac{84.78}{1} * \frac{2}{5}[/tex]
First, multiply all the numerators together and all the denominators together.
You end up with [tex]\frac{169.56}{5}[/tex]
=33.912
