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

Toán Lớp 5: 4/5X(7/9-1/2) giải giúp em với ạ

Toán Lớp 5: 4/5X(7/9-1/2) giải giúp em với ạ

Comments ( 2 )

  1. $\frac{4}{5}$ x ( $\frac{7}{9}$ – $\frac{1}{2}$ )
    = $\frac{4}{5}$ x $\frac{5}{18}$ 
    = $\frac{4X5}{5X18}$ 
    = $\frac{2X2X5}{5X2X9}$
    = $\frac{2}{9}$ 

  2. ( $\frac{7}{9}$ -$\frac{1}{2}$)
    =$\frac{4}{5}$x.$\frac{5}{18}$
    =$\frac{2}{9}$ x
     

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