第57页

信息发布者:
$\frac{4}{5}$
$\frac{9}{25}$
$\frac{5}{8}$
$\frac{1}{4}$
$\frac{3}{2}$
$\frac{11}{4}$
3
$\frac{1}{6}$
$\frac{1}{8}$、$\frac{3}{8}$、$\frac{5}{8}$、$\frac{7}{8}$
$\frac{8}{1}$、$\frac{8}{3}$、$\frac{8}{5}$、$\frac{8}{7}$
=


=
$\frac{1}{4}$
$\frac{1}{8}$
$\frac{2}{5}$
$\frac{1}{25}$
11
25
25
11
$\frac{1}{11}$
$\frac{5}{7}$
×

×
×
B
C
D
$\frac{2}{3}$
$\frac{1}{4}$
$\frac{1}{3}$
$\frac{3}{5}$