Oblicz wartość każdego wyrażenia i wpisz ją w lukę. I.-1 i 3/5+(-1,4)= II.-7-2 i 1/7= III.3,5+(-1/4)= IV.-3 i 3/5-(-1 i 2/3)=
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I. -3
II. -9 i 1/7
III. 3 i 1/4
IV. -1 i 14/15