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Ajutati ma va rog 1.2(4)+2.1(6)

Răspuns :

[tex]1,2(4)=\frac{124-12}{90}= \frac{112}{90} \\ \\ 2,1(6)= \frac{216-21}{90}= \frac{195}{90} \\ \\ 1,2(4)+2,1(6)= \frac{112+195}{90}= \frac{307}{90} [/tex]

/robèrtinni