第102页

信息发布者:
​$=\frac {2}{3}$​
​$=\frac {5}{8}$​
​$=\frac {7}{12}$​
​$=2\frac {1}{5}$​
=0
​$=\frac {7}{24}$​
​$=\frac {7}{12}$​
​$=1\frac {4}{5}$​
​$=(\frac {2}{5}+\frac {3}{5})+\frac {1}{3}$​
​$=1+\frac {1}{3}$​
​$=1\frac {1}{3}$​
​$=(\frac {1}{4}+\frac {1}{4})+(\frac {1}{3}+\frac {2}{3})$​
​$=\frac {2}{4}+1$​
​$=1\frac {1}{2}$​
​$=(\frac {9}{7}+\frac {5}{7})+(\frac {1}{8}+\frac {3}{8})$​
​$=\frac {14}{7}+\frac {4}{8}$​
​$=2+\frac {1}{2}$​
​$=2\frac {1}{2}$​