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Descompuneti in suma de doua fractii care au acelasi numitor fractia :


4/9 , 3/13 , 5/12 , 6/19.


Răspuns :

4/9=2/9+2/9 3/13=3/26+3/26 5/12=5/24+5/24 6/19=3/19+3/19