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

Toán Lớp 6: Thực hiện phép tính:1/6 + 2/15 +3/40+4/96+5/204

Toán Lớp 6: Thực hiện phép tính:1/6 + 2/15 +3/40+4/96+5/204

Comments ( 2 )

  1. PIKACHU
    DREAMMARKER
    1/6+2/15+3/40+4/96+5/204
    = 3/10+3/40+4/96+5/204
    =3/8+4/96+5/204
    =5/12+5/204
    =15/34

  2. 1/6 + 2/15 + 3/40 + 4/96 + 5/204
    = 1/(2.3) + 2/(3.5) + 3/(5.8) + 4/(8.12) + 5/(12.17)
    = 1/2 – 1/3 + 1/3 – 1/5 + 1/5 – 1/8 + 1/8 – 1/12 + 1/12 – 1/17
    = 1/2 – 1/17
    = 15/34

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

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