Ответ:
a+b
4,16+(-3,29)=0,87
-3,08+0,69= -2,39
-3/10+1=7/10
7,9+(-7,9)=0
1/30+(-1/20)=-1/60
-1+4/7=11/7=1 4/7
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Ответ:
a+b
4,16+(-3,29)=0,87
-3,08+0,69= -2,39
-3/10+1=7/10
7,9+(-7,9)=0
1/30+(-1/20)=-1/60
-1+4/7=11/7=1 4/7