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

Toán Lớp 5: (1-2/5) x (1-2/7) x (1-2/9)x (1-2/11) x…x (1-2/97) x (1-2/100)

Toán Lớp 5: (1-2/5) x (1-2/7) x (1-2/9)x (1-2/11) x…x (1-2/97) x (1-2/100)

Comments ( 2 )

  1. ( 1-2/5 ) x ( 1-2/7 ) x (1-2/9) x( 1-2/ 11 ) =3/ 11
    (1-2/97 ) x (1-2/100) = 931/ 970

  2. Lời giải và giải thích chi tiết:
    (1-2/5) . (1-2/7) . (1-2/9). (1-2/11) xx…xx (1-2/97) . (1-2/100)
    =3/5 . 5/7 . 7/9 . 9/11 xx … xx 95/97 . 98/100
    =3/97 . 98/100
    =147/4850

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