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$\frac{4}{15}$

$5\frac{1}{2}$

$\frac{7}{18}$

$\frac{3}{4}$

$\frac{8}{11}$

2

$\frac{5}{32}$

4

$=\frac {1}{9}÷\frac {1}{3}$

$=\frac {1}{3}$

$ =\frac {11}{12}×\frac {23}{22}×\frac {19}{46}$

$ =\frac {23}{24}×\frac {19}{46}$

$=\frac {19}{48}$

$=\frac {1}{3}×\frac {16}{5}×\frac {7}{12}$

$=\frac {16}{15}×\frac {7}{12}$

$=\frac {28}{45}$

$解：x=\frac {1}{3}×\frac {4}{5}$

$x=\frac {4}{15}$

$解：x=\frac {1}{3}×\frac {5}{2}$

$x=\frac {5}{6}$

$解：x=\frac {5}{16}×\frac {1}{8}$

$x=\frac {5}{128}$

$解：x=\frac {2}{15}×\frac {9}{4}$

$x=\frac {3}{10}$

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