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(9/3+5/2-1)-(1/4+3/4+5)=
FRACTII!!


Răspuns :

(9/3+5/2-1)-(1/4+3/4+5/1)=

(18/6+15/6-6/6)-(1/4+3/4+20/4)=

27/6-24/4=9/2-6/1=9/2-12/2=-3/2
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