Điền dấu thích hợp (< , >) vào ô vuông:
\(\eqalign{& {{ - 8} \over 9}\,\, < \,{{ - 7} \over 9}\,;\,\,\,\,\,\,\,\,\,\,\,\,\,{{ - 1} \over 3}\,\, > \,\,{{ - 2} \over 3} \cr & {3 \over 7}\,\, > \,\,{{ - 6} \over 7};\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{{ - 3} \over {11}}\,\, < \,\,{0 \over {11}} \cr} \)
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