`( 1 +2/3 – 1/4) . ( 4/5 – 3/4)^2`

2 bình luận về “`( 1 +2/3 – 1/4) . ( 4/5 – 3/4)^2`”

1. #Chanhh

   (1 + 2/3 – 1/4 ) (4/5 – 3/4 )^2

   = ( 3/3 + 2/3 – 1/4 ) ( 16/20 – 15/20 )^2

   = ( 5/3 – 1/4 ) (1/20)^2

   = ( 20/12 – 3/12 ) 1/400

   = 17/12 . 1/400

   = 17/4800

    

   Trả lời
2. (1+2/3-1/4)*(4/5-3/4)^2 $\\$ =(12/12+8/12-3/12)*(1/20)^2 $\\$ =17/12*1/400 $\\$ =17/4800

    

   Trả lời