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

Toán Lớp 6: Bai 6 Tinh a, (1648/1751 + 131313/686868) : (1648/1751 – 131313/686868) nhanh nhe

Toán Lớp 6: Bai 6 Tinh
a, (1648/1751 + 131313/686868) : (1648/1751 – 131313/686868)
nhanh nhe

Comments ( 2 )

  1. ( 1648/1751 + 131313/686868 )
    = ( 16/17 + 13/68 ) : ( 16/17 – 13/68 )
    = ( 64/68 + 13/68 ) : ( 64/68 – 13/68 )
    = 77/68 : 51/68
    = 77/51

  2. Giải đáp:
     
    Lời giải và giải thích chi tiết:
     (1648/1751 + 131313/686868) : (1648/1751 – 131313/686868)
    = ((1648 : 103)/(1751 : 103) + (131313 : 10101)/(686868 : 10101) ) : ((1648 : 103)/(1751 : 103) – (131313 : 10101)/(686868 : 10101) )
    =  (16/17 + 13/68) : (16/17 – 13/68)
    =  (64/68 + 13/68) : (64/68 – 13/68)
    = 77/68 : 51/68
    = 77/68 . 68/51
    = 77/51

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

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