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Efectuati :

a) 3/8 + 8/8-5/8=
b)2/3+5/6=
c) 1/2+5/8-3/4=


Răspuns :

a) 6/8=3/4
b)2/3+5/6 amplificam sa ajungem la acelasi numitor comun
=4/6+5/6=9/6=3/2
c)1/2+5/8-3/4=4/8+5/8-6/8=3/8