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

Toán Lớp 6: [5/3+5/6+ 5/9+5/12]:[8/6+8/12+8/18+8/24]

Toán Lớp 6: [5/3+5/6+ 5/9+5/12]:[8/6+8/12+8/18+8/24]

Comments ( 2 )

  1. ——-Gửi bạn———-
    Lời giải
    (5/3 + 5/6 + 5/9 + 5/12) : ( 8/6 + 8/12 + 8/18 + 8/24 )
    = (15/9 + 10/12 + 5/9 + 5/12):(24/18 + 16/24 + 8/18 + 8/24 )
    = (20/9 + 15/12):(32/18 + 1)
    = (80/36 + 45/26):(32/18 + 18/18)
    = \frac{125}{36} : \frac{50}{18}
    = \frac{125}{36} × \frac{18}{50}
    = \frac{5}{4}
    CHÚC HỌC TỐT
    XIN HAY NHẤT NHA TUS

  2. $\color{red}{\text{Conan}}$
    (5/3 + 5/6 + 5/9 + 5/12) : (8/6 + 8/12 + 8/18 + 8/24)
    = (5/3 + 5/6 + 5/9 + 5/12) : (4/3 + 2/3 + 4/9 + 1/3)
    = (60/36 + 30/36 + 20/36 + 15/36) : (12/9 + 6/9 + 4/9 + 3/9)
    = 125/36 : 25/9
    = 125/36 · 9/25
    = 5/4
    CHÚC BẠN HỌC TỐT

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

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