a,1/3+5/12+5/-6+1/4 b,(-1)³×81+5 3/4+(-1/2)²

2 bình luận về “a,1/3+5/12+5/-6+1/4 b,(-1)³×81+5 3/4+(-1/2)²”

1. a,1/3+5/12+5/-6+1/4

   =4/12+5/12+(-10)/12+3/12

   =2/12=1/6

   Vậy 1/3+5/12+5/-6+1/4=1/6

   b,(-1)^3. 81+5 3/4+(-1/2)^2

   =-1. 81+23/4+1/4

   =-81+6

   =-75

   Vậy (-1)^3. 81+5 3/4+(-1/2)^2=-75

   Trả lời
2. a,1/3+5/12+5/-6+1/4

   =3/4+5/-6+1/4

   =-1/12+1/4

   =1/6

   ——–

   b,(-1)^3×81+5 3/4+(-1/2)^2

   =-1×81+23/4+1/4

   =-81+23/4+1/4

   =-301/4+1/4

   =-75

   @Lynacute

    

   Trả lời