\(a,\frac{-2}{5}:\left(\frac{-3}{5}+\frac{3}{2}\right)\)
\(=\frac{-2}{5}:\left(-\frac{6}{10}+\frac{15}{10}\right)=\frac{-2}{5}:\frac{9}{10}\)
\(=\frac{-2}{5}.\frac{10}{9}=\frac{-20}{45}=-\frac{4}{9}\)
\(b,\frac{-5}{2016}.\frac{2}{11}+\frac{-5}{2016}.\frac{9}{11}+1\frac{5}{2016}\)
\(=\frac{-5}{2016}.\left(\frac{2}{11}+\frac{9}{11}\right)+1\frac{5}{2016}\)
\(=-\frac{5}{2016}+1+\frac{5}{2016}=1\)