1/2+(-2/3)-(-4/5)+(-1/2)-(+1/3)

发布于2022-02-19 14:11:27
3个回答
admin
网友回答2022-02-19
1/2+(-2/3)+4/5+(-1/2)+(-1/3) =(1/2-1/2) + (-2/3-1/3)+4/5 =-1+4/5 =-1/5 
admin
网友回答2022-02-19
解: 1/2+(-2/3)-(-4/5)+(-1/2)-(+1/3)   =1/2-2/3+4/5-1/2-1/3   =1/2-1/2+4/5-2/3-1/3   =0+4/5-1   =-1/5
admin
网友回答2022-02-19
解:=1/2-2/3+4/5-1/2-1/3 =(1/2-1/2)-(2/3+1/3)+4/5 =-1/5

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