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

Toán Lớp 5: 1010 x 2010 + 1009/ 2010 x1011 – 1001

Toán Lớp 5: 1010 x 2010 + 1009/ 2010 x1011 – 1001

Comments ( 2 )

  1. Lời giải và giải thích chi tiết:
    $\dfrac{1010      x          2010 + 1009}{2010 x 1011 + 1001}$
     =$\dfrac{1010 x 2010 + 1009}{2010 x (1010 + 1) + 1001}$ 
     =$\dfrac{1010 x 2010 + 1009}{2010 x 1010+(2010 +1001}$
     =$\dfrac{1010x 2010 + 1009}{2010 x 1010 + 3001}$
     =$\dfrac{1099}{3001}$

  2. {1010 × 2010 + 1009}/{2010 × 1011 + 1001}
    = {1010 × 2010 + 1009}/{2010 × ( 1010 + 1 ) + 1001}
    = {1010 × 2010 + 1009}/{2010 × 1010 + ( 2010 + 1001 )}
    = {1010 × 2010 + 1009}/{2010 × 1010 + 3011}
    = 1009/3011
    #dtkc

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