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2, (4)+1/2-1,5
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Răspuns :

2,(4)+1/2-1,5=
=(24-2)/9+1/2-15/10=
=22/9+1/2-3/2=
=22/9-2/2=
=22/9-1=
=(22-9)/9=
=13/9=1,(4)