10.把分数化为小数.(除不尽的保留两位小数)
| $\frac{5}{6}$= | $\frac{5}{21}$= | $\frac{9}{14}$= | $\frac{17}{24}$= | $\frac{5}{12}$= | $\frac{3}{8}$= |
9.把下面各组分数通分,再比较大小.
| $\frac{2}{3}$和$\frac{15}{18}$ | $\frac{4}{15}$和$\frac{7}{18}$ | 3$\frac{9}{16}$和3$\frac{7}{12}$ | $\frac{2}{13}$、$\frac{1}{5}$和$\frac{3}{10}$ |
8.把下面分数化为最简分数
0 128962 128970 128976 128980 128986 128988 128992 128998 129000 129006 129012 129016 129018 129022 129028 129030 129036 129040 129042 129046 129048 129052 129054 129056 129057 129058 129060 129061 129062 129064 129066 129070 129072 129076 129078 129082 129088 129090 129096 129100 129102 129106 129112 129118 129120 129126 129130 129132 129138 129142 129148 129156 199269
| $\frac{27}{84}$= | $\frac{45}{60}$= | $\frac{76}{48}$= | $\frac{105}{35}$= |