Đáp án:
\(\dfrac{{37}}{{60}}\)
Giải thích các bước giải:
$\begin{array}{l}
\left( { - 0,5 - \dfrac{3}{5}} \right):\left( { - 3} \right) + \dfrac{1}{3} - \left( {\dfrac{{ - 1}}{6}} \right):\left( { - 2} \right)\\
= \left( {\dfrac{{ - 1}}{2} - \dfrac{3}{5}} \right):\dfrac{{ - 3}}{1} + \dfrac{1}{3} - \left( {\dfrac{{ - 1}}{6}} \right):\dfrac{{ - 2}}{1}\\
= \left( {\dfrac{{ - 5}}{{10}} - \dfrac{6}{{10}}} \right).\dfrac{1}{{ - 3}} + \dfrac{1}{3} - \left( {\dfrac{{ - 1}}{6}} \right).\dfrac{1}{{ - 2}}\\
= \dfrac{{ - 11}}{{10}}.\dfrac{1}{{ - 3}} + \dfrac{1}{3} - \dfrac{1}{{12}} = \dfrac{{11}}{{30}} + \dfrac{1}{3} - \dfrac{1}{{12}}\\
= \dfrac{{22}}{{60}} + \dfrac{{20}}{{60}} - \dfrac{5}{{60}} = \dfrac{{22 + 20 - 5}}{{60}} = \dfrac{{37}}{{60}}
\end{array}$
