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calculati va rog! :( nr 96

Calculati Va Rog Nr 96 class=

Răspuns :

a

1/2-2/3=3/6-4/6=-1/6

b

-2/5-3/4=-8/20-15/20=-23/20

c

-7/4-3/2=-7/4-6/4=-13/4