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

Toán Lớp 5: : Tính theo cách hợp lí: ( 1 -1/2) x ( 1 -1/3) x ( 1 -1/4) x … x ( 1 -1/99) x ( 1-1/100) giúp mik với

Toán Lớp 5: : Tính theo cách hợp lí:
( 1 -1/2) x ( 1 -1/3) x ( 1 -1/4) x … x ( 1 -1/99) x ( 1-1/100)
giúp mik với

Comments ( 2 )

  1. 1/2 x 2/3 x 3/4 x … x 98/99 x 99/100
    =1/100
    Xin hay nhất và 5 sao ạ

  2. Answer
    (1 – 1/2) xx (1 – 1/3) xx (1 – 1/4) xx … xx (1 – 1/100)
    = (2/2 – 1/2) xx (3/3 – 1/3) xx (4/4 – 1/4) xx … xx (100/100 – 1/100)
    = 1/2 xx 2/3 xx 3/4 xx … xx 99/100
    = 1/100

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