Question

Va rog ajutati-ma la calcule

Calculati:
4,21+(-3,196)=
-0,7+(-0,3)=
-13,5+(-279,42)=
-7,6+4=
-1,(3)+1,(6)=
2,5+3,(5)=
4/3+(-1,(3)) =
-5/6+1/2+(-0,1(6)) =
0,75+5,12+0,25=
1,4+(-3,15)+1,6=

Answer 1

4,21+(-3,196)=4,21-3,196=1,014
-0,7+(-0,3)=-0,7-0,3=-1
-13,5+(-279,42)=-13,5-279,42=291,92
-7,6+4=-3,6
-1,(3)+1,(6)=-12/9+15/9=3/9=1/3=0,(3)
2,5+3,(5)=25/10+32/9=(225+320)/90=545/90=109/18=6,0(5)
4/3+(-1,(3)) =4/3-12/9) =4/3-4/3) =0
-5/6+1/2+(-0,1(6)) =-5/6+1/2-1/6 =-6/6+1/2 =-1+1/2=3/2=1,5

0,75+5,12+0,25=
1,4+(-3,15)+1,6=