Đáp án đúng: C
Giải chi tiết:\(\begin{array}{l}\,\frac{8}{{11}} + \frac{7}{6} + \frac{3}{{11}} + \frac{5}{6} - \frac{1}{{12}} \times \frac{3}{5} = \left( {\frac{8}{{11}} + \frac{3}{{11}}} \right) + \left( {\frac{7}{6} + \frac{5}{6}} \right) - \frac{1}{{12}} \times \frac{3}{5}\\\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = \,\,\,\,\,\,\,\,1\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, + \,\,\,\,\,\,2\,\,\,\,\,\,\,\,\, - \frac{1}{{20}}\\\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,3 - \frac{1}{{20}}\\\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = \,\,\,\,\,\,\,\,\,\,\,\,\frac{{59}}{{20}}\end{array}\)
Chọn C
