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

Toán Lớp 5: a) (3 + 1/6 ) -25 (5 -1/6 ) +7/10 b) (4,08 -2/25 ) :4/17

Toán Lớp 5: a) (3 + 1/6 ) -25 (5 -1/6 ) +7/10 b) (4,08 -2/25 ) :4/17 (6 5/9 – 31/4) x 2 2/7

Comments ( 2 )

  1. a) ( 3+ $\frac{1}{6}$ ) – 25 = $\frac{19}{6}$ – 25 =$\frac{-131}{6}$ 
    b) (5 – $\frac{1}{6}$ ) + $\frac{7}{10}$ = $\frac{29}{6}$ + $\frac{7}{10}$ =$\frac{83}{13}$ 
    c) ( 4,08 – $\frac{2}{25}$ ) : $\frac{4}{17}$ = $\frac{101}{25}$ : $\frac{4}{17}$ = 17
     

  2. a) (3 + $\frac{1}{6}$) – 25
     = $\frac{19}{6}$ – 25
     = $\frac{-131}{6}$ 
        (5 – $\frac{1}{6}$) + $\frac{7}{10}$
     = $\frac{29}{6}$ + $\frac{7}{10}$
     = $\frac{83}{13}$ 
    b) (4,08 – $\frac{2}{15}$) : $\frac{4}{17}$
     = 4 : $\frac{4}{17}$
     = $\frac{68}{4}$ = 17

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