Răspuns :
[tex]3,8(6)=\frac{386-38}{90}=\frac{348^{(6}}{90}=58/15 \;\;;\;\\
9,(4)=\frac{94-9}{9}=\frac{85}{9}\;\;;[/tex]
3.8(6) =348/90 periodice mixte
9(4) =85/9 1.2(3) =(123-12)/90
2.58(936) =(258936-258)/99900 finite
0.7 =7/10
14.152 =14152/1000
periodice simple
1.(3) =(13-1)/9
4.(16) =(416-4)/99
9(4) =85/9 1.2(3) =(123-12)/90
2.58(936) =(258936-258)/99900 finite
0.7 =7/10
14.152 =14152/1000
periodice simple
1.(3) =(13-1)/9
4.(16) =(416-4)/99