(2004+20042004+200420042004)/(2005+20052005+200520052005)
问题描述:
(2004+20042004+200420042004)/(2005+20052005+200520052005)
答
(2004+20042004+200420042004)/(2005+20052005+200520052005)
= [2004(1+10001+100010001)]/[2005(1+10001+100010001)]
= 2004 /2005