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

Toán Lớp 7: bai 1 a)5`2/3`:(-9)-`2/3`:(-9)+`(4/3)^2`+`V25`

Toán Lớp 7: bai 1
a)52/3:(-9)-2/3:(-9)+(4/3)^2+V25

Comments ( 2 )

  1. Giải đáp:
    = 56/9
    Lời giải và giải thích chi tiết:
    a) 5 2/3 : (-9) – 2/3 : (-9) + (4/3)^2 + \sqrt{25}
    = 5 2/3 . (-1/9) – 2/3 . (-1/9) + 16/9 + 5
    = (5 2/3 – 2/3) . (-1/9) + 16/9 + 5
    = 5 . (-1/9) + 16/9 + 5
    = -5/9 + 16/9 + 5
    = 11/9 + 5
    = 56/9

  2. a)5 2/3 :(-9)-2/3 : (-9)+(4/3)^2+\sqrt{25}
    =(5 2/3 -2/3):(-9)+16/9+5
    =5 . (-1/9) + 16/9+5
    =-5/9+16/9+45/9
    =11/9+45/9
    =56/9

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