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

Toán Lớp 7: $\frac{5}{9}$ : $\frac{14}{5}$ + $\frac{4}{9}$ : $\frac{14}{5}$

Toán Lớp 7: $\frac{5}{9}$ : $\frac{14}{5}$ + $\frac{4}{9}$ : $\frac{14}{5}$

Comments ( 2 )

  1. Giải đáp:
     5/14
    Lời giải và giải thích chi tiết:
     5/9 : 14/5 + 4/9 : 14/5
    = 5/9. 5/14 + 4/9. 5/14
    = (5/9 + 4/9). 5/14
    = 9/9. 5/14
    = 1. 5/14
    = 5/14

  2. $\frac{5}{9}$:$\frac{14}{5}$ +$\frac{4}{9}$ :$\frac{14}{5}$ = ($\frac{5}{9}$ + $\frac{4}{9}$):$\frac{14}{5}$ = 1.$\frac{5}{14}$ = $\frac{5}{14}$

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