?$\frac {7}{8}=\frac {7×9}{8×9}=\frac {63}{72}$?
?$\frac {7}{9}=\frac {7×8}{8×9}=\frac {56}{72}$?
?$\frac {56}{72}＜\frac {57}{72}＜\frac {58}{72}＜\frac {59}{72}＜\frac {60}{72}＜\frac {61}{72}＜\frac {62}{72}＜\frac {63}{72}$?
?$\frac {7}{9}＜\frac {19}{24}＜\frac {29}{36}＜\frac {59}{72}＜\frac {5}{6}＜\frac {61}{72}＜\frac {31}{36}＜\frac {7}{8}$?
大于?$\frac {7}{9}$?且小于?$\frac {7}{8}$?的分?jǐn)?shù)：?$\frac {19}{24}、$??$\frac {29}{36}、$??$\frac {59}{72}、$??$\frac {5}{6}、$??$\frac {61}{72}、$??$\frac {31}{36}.$
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