原式=(2002+2)*(2002+1)/2002 =(2002*2002+2*2002+2002*1+2*1)/2002 =2002+2+1+1/1001 =2005又1/1001
2004x2003/2002等于多少?（简便计算）大神们帮帮忙
原式=(2002+2)*(2002+1)/2002 =(2002*2002+2*2002+2002*1+2*1)/2002 =2002+2+1+1/1001 =2005又1/1001