Tính các phép tính sau

$$\begin{gathered} 1,\mathrm{A}=3\frac{2}{5}.6\frac{1}{4}+3\frac{2}{5}.3\frac{3}{4} \\ 2, \mathrm{B}=8\frac{3}{8}-(2\frac{5}{11}+4\frac{3}{8}) \\ 3, \mathrm{C}= \frac{8}{3}.\frac{2}{5}.\frac{3}{8}.10.\frac{19}{92} \\ 4, \mathrm{D}=\frac{4}{7}.\frac{7}{13}+\frac{4}{7}.\frac{9}{13}-\frac{4}{7}.\frac{3}{13} \\ 5, \mathrm{E}= (15\frac{5}{7}+2\frac{2}{5})-8\frac{5}{7} \\ 6, \mathrm{G}=50\%.1\frac{1}{3}.10.\frac{7}{35}.0,75 \\ 7,\frac{-4}{7}.\frac{2}{9}+\frac{-4}{7}.\frac{7}{9}+2\frac{4}{7} \end{gathered}$$