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

Toán Lớp 5: 9 – Y = 2 4/7 , 38/17 : 76/51 x 2/3 =

Toán Lớp 5: 9 – Y = 2 4/7 , 38/17 : 76/51 x 2/3 =

Comments ( 2 )

  1. 9-y=2 4/7
    y=9-2 4/7
    y=45/7
    38/17:76/51xx2/3
    =38/17xx51/76xx2/3
    =1/1xx3/2xx2/3
    =3/2xx2/3
    =1

  2. Lời giải và giải thích chi tiết:
    9-y=$\frac{24}{7}$
       y=$\frac{24}{7}$+9
       y=$\frac{87}{7}$
    $\frac{38}{17}$:$\frac{76}{51}$×$\frac{2}{3}$
    =$\frac{3}{2}$×$\frac{2}{3}$
    =1
    $@Doraemon50th$

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

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