Ответ:\(\frac{4}{9}=0,(4)\);\(\frac{8}{15}=0,5(3)\);\(\frac{29}{80}=0,3625\);\(\frac{11}{18}=0,6(1)\);\(6\frac{9}{20}=6,45\);\(3\frac{7}{12}=3,58(3)\).