Question

3,4(5)+4,5(6)= ?
Cum să calculeze?

Answer 1

3,4(5)+4,5(6)= (345-34)/90+(456-45)/90=
=311/*90+411/90=722/90=361/45=8,0(2)

Answer 2

transformi in fractii
si iti da:
3,4(5)=[tex] \frac{311}{90 } [/tex]
4.5(6)=$\frac{411}{90}$
cind le aduni iti da $\frac{722}{90}$