Răspuns:
0,(35) = 35/99
1,2(5) = 125-12/90 = 113/90
1,(3) = 13-1/9 = 12/9
1,(5) = 15-1/9 = 14/9
2,1(6) = 216-21/90=195/90=35/18
1,25 = 125/100=5/4
1,2 = 12/10= 6/5
7,5 = 75/10= 15/2