Tính nhanh:
a)\(A=\frac{423134\times846267-423133}{423133\times846267+423134}\)
b)\(B=\frac{2\times2014\times2015-2013}{2\times2013\times2014+6043}\)
c)\(C=\frac{2\times2014\times2016+3}{2\times2015\times2016-4029}\)
d)\(D=\frac{2010\times3020-1000}{1010+2010\times3019}\)
e)\(E=\frac{2013\times1955-1911}{2013\times1954+102}\)
g)\(G=\frac{1945\times1976-2013}{2\times1945\times1975-136}\)
h)\(H=\frac{2\times1890\times1969+158}{9\times1890\times1945+9\times24\times1890+711}\)