a)1/5 : x = 1/5 + 1/7 b)x-1/9 = 8/3 c)5/16 : x -1/4 = 5/12

0 bình luận về “a)1/5 : x = 1/5 + 1/7 b)x-1/9 = 8/3 c)5/16 : x -1/4 = 5/12”

1. a)1/5 : x = 1/5 + 1/7

    1/5 : x = 12/35

     x        = 7/12

   b)x – 1/9 = 8/3

   x       = 25/9

   c)5/16 : x -1/4 = 5/12

   5/16 : x   = 1/4 + 5/12

   5/16 : x   = 2/3

   x             = 15/32

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2. a) `1/5 : x = 1/5 + 1/7`

   `1/5 : x = 12/35`

   `x=1/5 : 12/35`

   `x=7/12`

   b) `x-1/9 = 8/3`

   `x=8/3 + 1/9`

   `x=25/9`

   c) `5/16 : x -1/4 = 5/12`

    `5/16 : x = 5/12 + 1/4`

   `5/16 😡 = 2/3`

   `x= 5/16 : 2/3`

   `x= 15/32`

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