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

Toán Lớp 6: thực hiện các phép tính sau: 13/12-3/8; 1/4+1/10

Toán Lớp 6: thực hiện các phép tính sau: 13/12-3/8; 1/4+1/10

Comments ( 2 )

  1. $@Shin$
    $\dfrac{13}{12}$$\dfrac{-3}{8}$
    = $\dfrac{26}{24}$ $\dfrac{-9}{24}$
    = $\dfrac{26-9}{24}$
    = $\dfrac{17}{24}$
    $\dfrac{1}{4}$ $\dfrac{+1}{10}$
    = $\dfrac{5}{20}$ $\dfrac{+2}{20}$
    = $\dfrac{7}{20}$

  2. Answer
    13/12 – 3/8
    = 26/24 – 9/24
    = 17/24
    ________________
    1/4 + 1/10
    = 5/20 + 2/20
    = 7/20
     

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