a,X+4/9=5/2+1/3 b,4/5-X=1/5×2/3 c,3-Xx1/2=1/3 lưu ý ; tìm X nha

0 bình luận về “a,X+4/9=5/2+1/3 b,4/5-X=1/5×2/3 c,3-Xx1/2=1/3 lưu ý ; tìm X nha”

1. Giải thích các bước giải:

    a) X + `4/9` = `5/2` + `1/3`

        X + `4/9` = `17/6`

        X = `17/6` – `4/9` = `43/18`

    b)`4/5` – X = `1/5` x `2/3`

       `4/5` – X = `2/15`

       X = `4/5` – `2/15`= `2/3`

    c)3 – X x `1/2` = `1/3`

      X x `1/2` = 3 – `1/3` = `8/3`

      X = `8/3` : `1/2`= `16/3`

   Bình luận

2. `a)“x+4/9=5/2+1/3`

   `=>x+4/9=17/6`

   `=>x=43/18`

   Vậy `x=43/18`.

   `b)“4/5-x=1/5xx2/3`

   `=>4/5-x=2/15`

   `=>x=2/3`

   Vậy `x=2/3`.

   `c)“3-x xx1/2=1/3`

   `=>x xx1/2=8/3`

   `=>x=16/3`

   Vậy `x=16/3`.

   Bình luận