\frac{2 * (\frac{2}{5})^{-1}+3,5}{4^{-1} * [(\frac{1}{3})^{-2}-(\frac{17}{19})^0]}
\frac{2 * (\frac{2}{5})^{-1}+3,5}{4^{-1} * [(\frac{1}{3})^{-2}-(\frac{17}{19})^0]}=
=\frac{2 * \frac{5}{2}+3,5}{\frac{1}{4} * [9-1]}=\frac{5+3,5}{\frac{1}{4} * 8}=
=\frac{8,5}{2}=\frac{85}{20}=\frac{17}{4}=4\frac{1}{4}