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

Toán Lớp 6: A = 10^2014 + 2016 / 10^2015 +2016 và 10^2015 + 2016/10^2016 + 2016 Mn giúp e với e cần rất gấp cảm ơn nhiều ạ

Toán Lớp 6: A = 10^2014 + 2016 / 10^2015 +2016 và 10^2015 + 2016/10^2016 + 2016
Mn giúp e với e cần rất gấp cảm ơn nhiều ạ

Comments ( 2 )

  1. A = ( 10^2014 + 2016 )/(10^2015 + 2016 )
    = ( 10^2014 + 2016 )/( 10 × 10^1014 + 2016 )
    = ( 1 + 1 )/( 10 × 1 + 1 )
    = 2/11
    => A = 2/11
    @ Rin

  2. Lời giải và giải thích chi tiết:
    A=(10^2014+2016)/(10^2015+2016)
    10A=(10(10^2014+2016))/(10^2015+2016)
    10A=(10^2015+20160)/(10^2015+2016)
    10A=(10^2015+2016+18144)/(10^2015+2016)
    10A=(10^2015+2016)/(10^2015+2016)+18144/(10^2015+2016)
    10A=1+18144/(10^2015+2016)
    B=(10^2015+2016)/(10^2016+2016)
    10B=(10(10^2015+2016))/(10^2016+2016)
    10B=(10^2016+20160)/(10^2016+2016)
    10B=(10^2016+2016+18144)/(10^2016+2016)
    10B=(10^2016+2016)/(10^2016+2016)+18144/(10^2016+2016)
    10B=1+18144/(10^2016+2016)

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