Răspuns:
Explicație pas cu pas:
a)
20/9= 20:9 = 2,22222 .....= 2,(2)
31/27= 31:27 = 1,148148 ....= 1,(148)
104/3= 100:3= 34,66666...= 34 ,(6)
5/27=5:27=0, 185185185........ = 0, (185)
22/9= 22:9= 2,44444 ....................= 2,(4)
b)
49/9= 49:9 = 5,444444..............= 5,(4)
175/3= 175:3 = 58,333333........= 58,(3)
2431/27= 2431:27= 90 , 037037037.............= 90 , ( 037)
84/66= 84:66= 1,272727..............................= 1,(27)
1821/33= 1821:33= 55, 18181818................= 55,(18)