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

Toán Lớp 7: -6/7+6/13-6/29 / 9/7-9/13+9/29

Toán Lớp 7: -6/7+6/13-6/29 / 9/7-9/13+9/29

Comments ( 2 )

  1. (-6/7 + 6/13 – 6/29)/(9/7 – 9/13 + 9/29)
    =(-6 . (1/7 – 1/13 + 1/29))/(9 . (1/7 – 1/13 + 1/29))
    =(-6)/9=(-2)/3

  2. Lời giải và giải thích chi tiết:
    (-6/7 + 6/13 – 6/29)/(9/7 – 9/13 + 9/29)
    = (-6 . (1/7 – 1/13 + 1/29))/(9 . (1/7 – 1/13 + 1/29))
    = (-6)/9
    = (-2)/3

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