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Nu stiu ex;3
Va roggg ajutatima !!!


Nu Stiu Ex3 Va Roggg Ajutatima class=

Răspuns :

a=7/3 + 13/8 -17/8= 7/3-4/8= 7/3-1/2= (14-3)/2=11/2
b= 61/12- 19/6- 7/4 = (61-19-7)/4= 2/12= 1/6
c= 5/2+ 31/10- 17/4= -7/4+31/10= (-70+24)/10= 27/5
A= 11/2+ 1/6× 27/5= (165+27)/30= 32/5