18．在○里填上“＞、＜和=”．
0 160878 160886 160892 160896 160902 160904 160908 160914 160916 160922 160928 160932 160934 160938 160944 160946 160952 160956 160958 160962 160964 160968 160970 160972 160973 160974 160976 160977 160978 160980 160982 160986 160988 160992 160994 160998 161004 161006 161012 161016 161018 161022 161028 161034 161036 161042 161046 161048 161054 161058 161064 161072 199269
| $\frac{7}{13}$○$\frac{7}{13}$×13 | $\frac{11}{15}$÷11○$\frac{11}{15}$ | $\frac{6}{5}$÷1○$\frac{5}{6}$ | $\frac{7}{18}$×$\frac{6}{19}$○$\frac{7}{18}$÷$\frac{19}{6}$ |