Điền dấu thích hợp vào chỗ chấm:

Đáp án đúng là: A

\[\frac{5}{6}\,\, + \,\,\frac{2}{5}\,\,..........\,\,\frac{7}{6}\]

\[\frac{5}{6}\,\, + \,\,\frac{2}{5}\,\, = \,\frac{{5 \times 5}}{{6 \times 5}} + \frac{{2 \times 6}}{{5 \times 6}} = \frac{{25}}{{30}} + \frac{{12}}{{30}} = \frac{{37}}{{30}}\]

\[\,\,\frac{7}{6} = \frac{{7 \times 5}}{{6 \times 5}} = \frac{{35}}{{30}}\]

So sánh \[\,\frac{{37}}{{30}}\,\, > \,\frac{{35}}{{30}}\]

Vậy \[\,\frac{5}{6}\,\, + \,\frac{2}{5} > \frac{7}{6}\]