13．写出下面各数的倒数．
0 155953 155961 155967 155971 155977 155979 155983 155989 155991 155997 156003 156007 156009 156013 156019 156021 156027 156031 156033 156037 156039 156043 156045 156047 156048 156049 156051 156052 156053 156055 156057 156061 156063 156067 156069 156073 156079 156081 156087 156091 156093 156097 156103 156109 156111 156117 156121 156123 156129 156133 156139 156147 199269
| $\frac{4}{11}$$\frac{11}{4}$ | $\frac{16}{9}$$\frac{9}{16}$ | $\frac{7}{8}$$\frac{8}{7}$ |
| $\frac{4}{15}$$\frac{15}{4}$ | 35$\frac{1}{35}$ | 0.25 |
