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

Toán Lớp 5: 3+2/5 4-5/7 Nhanh mik đang gấp

Toán Lớp 5: 3+2/5
4-5/7
Nhanh mik đang gấp

Comments ( 2 )

  1. 3 + $\frac{2}{5}$ = $\frac{17}{5}$ 
    4 – $\frac{5}{7}$ = $\frac{23}{7}$ 
    Chúc bạn học tốt

  2. $3$ $+$ $\dfrac{2}{5}$= $\dfrac{15}{5}$ $+$ $\dfrac{2}{5}$$=$ $\dfrac{17}{5}$
    $4$ $-$ $\dfrac{5}{7}$$=$ $\dfrac{28}{7}$ $-$ $\dfrac{5}{7}$$=$ $\dfrac{23}{7}$
     

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

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