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第67頁

信息發(fā)布者：
B
D
B
B
B
A
C
?$2\frac {2}{5}$?
?$\frac {2}{7}$?
7
?$\frac {39}{50}$?
?$\frac {7}{20}$?
?$2\frac {1}{2}$?
0.59
4.125
0.833
?$\frac {2}{9}=\frac {22}{99}，$?
?$\frac {3}{11}=\frac {27}{99}$?
?$\frac {22}{99}<\frac {27}{99}，$?
?$\frac {2}{9}<\frac {3}{11}$?
?$\frac {3}{4}=\frac {42}{56}，$??$\frac {6}{7}=\frac {48}{56}，$?
?$\frac {7}{8}=\frac {49}{56}$?
?$\frac {42}{56}＜\frac {48}{56}<\frac {49}{56}，$?
?$\frac {3}{4}＜\frac {6}{7}<\frac {7}{8}$?
?$\frac {5}{8}=\frac {15}{24}，$?
?$\frac {7}{12}=\frac {14}{24}$?
?$\frac {15}{24}>\frac {14}{24}，$?
?$\frac {5}{8}>\frac {7}{12}$?
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