Răspuns:
Explicație pas cu pas:
0,(3)=3/9=1/3
0,(14)=14/99
3,(5)=3 5/9=(9X3+5)/9=(27+5)/9=32/9
15,(12)=15 12/99=15 4/33=(33x15+4)/99=499/99
21,(36)=21 36/99=21 12/33=(33*21+22)/33=715/33
6,(47)=6 47/99=(99x6+47)/99=641/99
7,(21)=7 21/99=7 7/33=(33x7+7)/33=238/33
11,(57)=11 57/99=11 19/33=(33x11+19)/33=382/33
0,0(4)=4/90=2/45
0,1(31)=(131-1)/990=130/990=13/99
0,1(3)=(13-1)/90=12/90=4/30=2/15
1,1(3)=1 (13-1)/90=1 12/90=1 2/15=(15x1+2)/15=17/15
22,5(1)=22 (51-5)/90=22 46/90=22 23/45=(45x22+23)/45=1013/45
0,4(3)=(43-4)/90=39/90=13/30
0,4(15)=(415-4)/990=411/990
1,2(3)=1 (23-2)/90=1 21/90=1 7/30=(30x1+7)/30=37/30
