\frac{2\sqrt[3]{81}+3\sqrt[3]{24}+\sqrt[3]{375}}{5\sqrt[3]{192}-\sqrt[3]{3000}}=
=\frac{2*\sqrt[3]{27*3}+3\sqrt[3]{8*3}+\sqrt[3]{125*3}}{5*\sqrt[3]{64*3}-\sqrt[3]{1000*3}}=\frac{6\sqrt[3]3+6\sqrt[3]3+5\sqrt[3]3}{20\sqrt[3]3-10\sqrt[3]3}=
=\frac{17\sqrt[3]3}{10\sqrt[3]3}=1,7