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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 5: 2/5 + 3/10 + 4/5= bằng bao nhiêu ạ?

Toán Lớp 5: 2/5 + 3/10 + 4/5= bằng bao nhiêu ạ?

Comments ( 2 )

  1. 2/5 + 3/10 + 4/5
    = 7/10 + 4/5
    = 15/10 = 3/2
    #trinhphuong17321. Xin câu trả lời hay nhất và 5 sao
     

  2. $\#wcdi$
    $\dfrac{2}{5}$ + $\dfrac{3}{10}$ + $\dfrac{4}{5}$
    Ta lấy MC là 10  :
    $\dfrac{4}{10}$+ $\dfrac{3}{10}$ + $\dfrac{8}{10}$
    = $\dfrac{7}{10}$ + $\dfrac{8}{10}$
    = $\dfrac{15}{10}$ = $\dfrac{3}{2}$

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222-9+11+12:2*14+14 = ? ( )