Question

{2*4-[4+3*2/5*(1-2/5)]}

Answer 1

{2*4-[4+3*2/5*(1-2/5)]}
{2.4-[4+3.$\frac{2}{5}$.($\frac{5-2}{5}$)]}
{2.4-[4+$\frac{6}{5} . \frac{3}{5} ]$}
2.4-[4+$\frac{18}{25}$]
2.4-[$\frac{118}{25}$]
2.4-4,72
8-4,72
3,28