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第37页

信息发布者：

$\frac{1}{4}$

$1\frac{1}{28}$

$\frac{11}{24}$

$\frac{1}{2}$

$\frac{5}{18}$

$2\frac{1}{5}$

$\frac{2}{3}$

$1\frac{7}{11}$

$\begin{aligned}解：x&=\frac {2}{3}-\frac {1}{9}\\x&=\frac {5}{9}\end{aligned}$

$\begin{aligned}解：x&=\frac {5}{6}+\frac {5}{8}\\x&=\frac {35}{24}\end{aligned}$

$\begin{aligned}解：5x&=\frac {3}{8}+\frac {5}{8}\\5x&=1\\x&=0.2\end{aligned}$

$\begin{aligned}解：x+\frac {1}{5}&=\frac {2}{3}\\x&=\frac {7}{15}\end{aligned}$

$=\frac {7}{8}+\frac {6}{8}+\frac {1}{3}$

$=\frac {13}{8}+\frac {1}{3}$

$=\frac {47}{24}$

$=\frac {5}{6}-\frac {8}{15}$

$=\frac {3}{10}$

$=5-(\frac {5}{11}+\frac {17}{11})$

$=5-2$

$=3$

$=(\frac {23}{15}+\frac {7}{15})-(\frac {7}{12}+\frac {5}{12})$

$=2-1$

$=1$

$=\frac {10}{21}+\frac {11}{21}-1$

$=1-1$

$=0$

$=(\frac {2}{3}+\frac {1}{3})-(\frac {5}{12}+\frac {7}{12})$

$=1-1$

$=0$