Cho \(M = \frac{{17}}{5}.\frac{{ - 31}}{{125}}.\frac{1}{2}.\frac{{10}}{{17}}.

Câu hỏi :

Cho \(M = \frac{{17}}{5}.\frac{{ - 31}}{{125}}.\frac{1}{2}.\frac{{10}}{{17}}.{\left( {\frac{{ - 1}}{2}} \right)^3}\) và \(N = \left( {\frac{{17}}{{28}} + \frac{{28}}{{29}} - \frac{{19}}{{30}} - \frac{{20}}{{31}}} \right).\left( {\frac{{ - 5}}{{12}} + \frac{1}{4} + \frac{1}{6}} \right)\)Khi đó tổng M + N bằng