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

Toán Lớp 5: 1997*1996-995 ———————— 1995*1997+1002

Toán Lớp 5: 1997*1996-995
————————
1995*1997+1002

Comments ( 2 )

  1. ( 1997 × 1996 – 995 )/( 1995 × 1997 + 1002 )
    = ( 1997 × ( 1995 + 1 ) – 995 )/( 1997 × 1995 + 1002 )
    = ( 1997 × 1995 + 1997 – 995 )/( 1997 × 1995 + 1002 )
    = ( 1997 – 995 )/1002
    = 1002/1002
    = 1
    $☆Jυ丶¢нαи☆$

  2. \text{@Nem}
    $\dfrac{1997×1996-995}{1995×1997+1002}$
    =$\dfrac{1997×(1995+1)-995}{1995×1997+1002}$
    =$\dfrac{1997×1995+1997-995}{1995×1997+1002}$
    = $\dfrac{1997×1995+(1997-995)}{1995×1997+1002}$
    = $\dfrac{1997×1995+1002}{1995×1997+1002}$
    = 1

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