(2008+2009*2007)/(2008*2009-1)
=[2008+(2008+1)(2008-1)]/[2008*(2008+1)-1]
=[2008+(2008²-1)]/[2008*(2008+1)-1]
=(2008+2008²-1)/(2008²+2008-1)
=(2008+2008²-1)/(2008²+2008-1)
=1
(2008+2009*2007)/(2008*2009-1)
=[2008+(2008+1)(2008-1)]/[2008*(2008+1)-1]
=[2008+(2008²-1)]/[2008*(2008+1)-1]
=(2008+2008²-1)/(2008²+2008-1)
=(2008+2008²-1)/(2008²+2008-1)
=1