Exercițiul 4
a) 0,2 + 1,(3) =3,2
b) 2,5 + 0,(7) =2,5
c) 4,25 + 0,1(6) =4,85
d) 12,25 + 0,(36) =12,25
e) 1.2(3) + 0.25 =3,625
Exercitiul 6
a) [tex] \frac{12}{20} + \frac{14}{10} = \frac{3}{5} + \frac{7}{5} = \frac{3+7}{5} = \frac{10}{5} = 2[/tex]
b)[tex] \frac{21}{49} + \frac{10}{35} = \frac{3}{7} + \frac{2}{7} = \frac{3+2}{7} = \frac{5}{7} [/tex]
c)[tex] \frac{11}{121} + \frac{24}{33} = \frac{1}{11} + \frac{8}{11} = \frac{1+8}{11} = \frac{9}{11} [/tex]
