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

Toán Lớp 4: 8/17×4/15+8/17 x 22/15 – 8/15 x 9/17

Tháng Hai 17, 2023 Toán học 2 Comments 0 views

Toán Lớp 4: 8/17×4/15+8/17 x 22/15 – 8/15 x 9/17

Comments ( 2 )

  1. diemmyhoa
    diemmyhoa
    17 Tháng Hai, 2023 at 12:42 chiều
    Reply
    8/17 × 4/15 + 8/17 × 22/15 – 8/15 × 9/17
    = 8/17 × 4/15 + 8/17 × 22/15 – 8/17 × 9/15
    = 8/17 × ( 4/15 + 22/15 – 9/15 )
    = 8/17 × 17/15
    = {8×17}/{17 × 15}
    = 8/15
    #dtkc

  2. cattien
    cattien
    17 Tháng Hai, 2023 at 12:42 chiều
    Reply
    Giải đáp:
    \frac{8}{17} × \frac{4}{15} + \frac{8}{17} × \frac{22}{15} – \frac{8}{15} × \frac{9}{17}
    = \frac{8}{15} × \frac{4}{17} + \frac{8}{15} × \frac{22}{17} – \frac{8}{15} × \frac{9}{17}
    = \frac{8}{15} × (\frac{4}{17} + \frac{22}{17} – \frac{9}{17})
    = \frac{8}{15} × 1
    = \frac{8}{15}
    Chúc học tốt!!!
     
     

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

Cát Linh

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