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b)-2 i 14/15+0,2=-44/15+2/10=-44/15+1/5=-88/30+6/30=-82/30=-2 i 22/30
=-2 i 11/15
c)2,66+(-2 i 1/3)=266/100-7/3=133/50-7/3=399/150-350/150=49/150
d)4,08-(-3,275)=4,08+3,275=7,355
e)-2 i 1/3-(-3,8)=-7/3+38/10=-70/30+114/30=44/30=1 i 14/30=1 i 7/15
f)-14,2-7,87=-22,07