Efetue as adições: A) (-2/5+3= B) (-1/6)+(+2) = C) (-5/3)+(+1) =
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A)(-2/5+3)=
-2/5+15/5=
13/5.
B)(-1/6)+(+2)=
-1/6+2=-1/6+12/6=
11/6.
C)(-5/3)+(+1)=
-5/3+1=
-5/3+1/3=-2/3.
-2/5+15/5=
13/5.
B)(-1/6)+(+2)=
-1/6+2=-1/6+12/6=
11/6.
C)(-5/3)+(+1)=
-5/3+1=
-5/3+1/3=-2/3.
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