5 3/4 +1/4 : x = 5 1/2 7/11 +-3/8+4/11+-5/8-3/4

1 bình luận về “5 3/4 +1/4 : x = 5 1/2 7/11 +-3/8+4/11+-5/8-3/4”

1. 5(3)/4+1/4:x=5(1)/2

   23/4+1/4:x=11/2

   1/4:x=11/2-23/4

   1/4:x=-1/4

   x=(-1/4):1/4

   x=-1

   Vậy x=-1

   $\\$

   7/11+(-3)/8+4/11+(-5)/8-3/4

   =(7/11+4/11)+((-3)/8+(-5)/8)-3/4

   =11/11+(-8/8)-3/4

   =1-1-3/4

   =-3/4

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