Question

Comparati numerele:
a) 3,5(21) si 3,52(1)
b)$\frac{11}{9}$ si $\frac{5}{4}$

Answer 1

3,5(21) > 3,52(1)

11/9 < 5/4  deoarece   1,(2)  < 1,25

Answer 2

a)     3,5(21)212121  >   3,52(1)111111

b)  si   
$\frac{11}{9} si \frac{5}{4} \;\;\;\text{le aducem la acelasi numitor} \\ \\ \frac{44}{36} < \frac{45}{36} \\ \\ =>\;\;\; \frac{11}{9} < \frac{5}{4}$