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

Toán Lớp 7: 4 1 4 1 ___ . 16 ____ _ ________ . 43 _____ =?????

Toán Lớp 7: 4 1 4 1
___ . 16 ____ _ ________ . 43 _____ =?????
9 3 9 3

Comments ( 2 )

  1. Giải đáp + Lời giải và giải thích chi tiết:
    4/9 . 16 1/3 – 4/9 . 43 1/3
    = 4/9 . (16 1/3 – 43 1/3)             (16 – 43 = -27 ; 1/3 – 1/3 = 0 -> = 27)
    = 4/9 . (-27)
    = (4 . (-27))/9
    = -12

  2. 4/9. 16 1/3 – 4/9. 43 1/3
    = 4/9. (16 1/3 – 43 1/3)
    = 4/9. (49/3 – 130/3)
    = 4/9. (-27)
    = -12
     

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

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