a)4/9 + 23/37 – 22/9 + 14/37 + 1 mũ 3 b)2/5 + 3/5 : (-3/2)+1/2 -1001/2002 c)27/13 : 9/7 + 12/13 : 9/7 d)8/15 x -4/9 + 8/15 :

2 bình luận về “a)4/9 + 23/37 – 22/9 + 14/37 + 1 mũ 3 b)2/5 + 3/5 : (-3/2)+1/2 -1001/2002 c)27/13 : 9/7 + 12/13 : 9/7 d)8/15 x -4/9 + 8/15 :”

1. Đáp án:

    

   Giải thích các bước giải:

    

   

   Trả lời
2. a,4/9+23/37-22/9+14/37+1^3

   =(4/9-22/9)+(23/37+14/37)+1

   =-2+1+1

   =0

   $\\$

   b,2/5+3/5:(-3)/2+1/2-1001/2002

   =2/5-2/5+1/2-1/2

   =0+0

   =0

   $\\$

   c,27/13:9/7+12/13:9/7

   =27/13*7/9+12/13*7/9

   =7/9*(27/13+12/13)

   =7/9*3

   =7/3

   $\\$

   d,8/15*(-4)/9+8/15:(-9)/5-3 2/5

   =8/15*(-4)/9+8/15*(-5)/9-17/5

   =(-8)/15*(4/9+5/9)-17/5

   =(-8)/15*1-17/5

   =-59/15

   Trả lời