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Rezolvati:
17pe28+5pe18-(3pe28-13pe18)= Va rog ajutatima urgent dau coroana!!!!!!


Răspuns :

17/28+5/18-(3/28-13/18)=
=17/28+5/18-3/28+13/18=
=14/28+18/18=1/2 +1=3/2