OBLICZ
działania na liczbach dodatnich i ujemnych
a) -5/9+2/3+5/9-5/6-2/3=
b) -2/7+3/8-1/2+2/7-1/4+1/2=
c) -1,1+2,2+3,3-5,5+6,6=
d) -3,7+2,85+4,7-4,85=
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a)=-1/2
b)=3/8
c)=5,5
d)=-1