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

Toán Lớp 5: a) 3/4*1/6+1/6 b)1 4/9 :4/9

Toán Lớp 5: a) 3/4*1/6+1/6 b)1 4/9 :4/9

Comments ( 2 )

  1. Giải đáp+Lời giải và giải thích chi tiết:
     a) 3/4 × 1/6 + 1/6
    = 1/8 + 1/6
    = 6/48 + 8/48
    = 14/48 = 7/24
    ______________________
     b) 1 4/9 : 4/9
    = 13/9 : 4/9
    = 13/9 × 9/4
    = 13/4
    #Q010909  

  2. $a$)
    $\frac{3}{4}$ x $\frac{1}{6}$ + $\frac{1}{6}$ 
    $=$ $\frac{3 . 1}{6 . 4}$ + $\frac{1}{6}$ 
    $=$ $\frac{3}{24}$ + $\frac{1}{6}$ 
    $=$ $\frac{3}{24}$ + $\frac{4}{24}$
    $=$ $\frac{7}{24}$
    ———————————————————-
    $b$) $1$$\frac{4}{9}$ : $\frac{4}{9}$ 
    = $\frac{13}{9}$ : $\frac{4}{9}$ 
    = $\frac{13}{9}$ x $\frac{9}{4}$ 
    = $\frac{13}{4}$ 

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