\frac{(\frac{2}{3})^{-\frac{3}{4}}*(2\frac{1}{2})^{\frac{3}{5}}*(0,4)^{0,7}}{\sqrt{\frac{2}{5}}*(\frac{5}{2})^{0,15}}=
\frac{(\frac{3}{2})^{\frac{3}{4}}*(\frac{5}{2})^{\frac{3}{5}}*(\frac{2}{5})^{\frac{7}{10}}}{(\frac{2}{5})^{\frac{1}{2}}*(\frac{5}{2})^{\frac{15}{100}}}=
=(\frac{3}{2})^{\frac{3}{4}}*(\frac{5}{2})^{\frac{3}{5}-\frac{3}{20}}*(\frac{2}{5})^{\frac{7}{10}-\frac{1}{2}}=
==(\frac{3}{2})^{\frac{3}{4}}*(\frac{5}{2})^{\frac{12-3}{20}}*(\frac{2}{5})^{\frac{7-5}{10}}=(\frac{3}{2})^{\frac{3}{4}}*(\frac{5}{2})^{\frac{9}{20}}*(\frac{1}{\frac{2}{5}})^{\frac{1}{5}}=
=(\frac{3}{2})^{\frac{3}{4}}*(\frac{5}{2})^{\frac{9}{20}}*(\frac{5}{2})^{\frac{1}{5}}=(\frac{3}{2})^{\frac{3}{4}}*(\frac{5}{2})^{\frac{9+4}{20}}=
=(\frac{3}{2})^{\frac{3}{4}}*(\frac{5}{2})^{\frac{13}{20}}=\frac{\sqrt[4]{3^3}*5^{\frac{13}{20}}}{2^{\frac{3}{4}}*2^{\frac{13}{20}}}=
=\frac{\sqrt[4]{3^3}*5^{\frac{13}{20}}}{2^{\frac{15+13}{20}}}=\frac{\sqrt[4]{3^3}*5^{\frac{13}{20}}}{2^{\frac{7}{5}}}=
={\frac{\sqrt[4]{3^3}*5^{\frac{13}{20}}}{2\sqrt[5]{2^2}}}