2000/2001*1999=

来源：学生作业帮助网编辑：作业帮时间：2024/11/07 21:51:32

2000/2001*1999=
2000/2001*1999=

2000/2001*1999=
2000/2001x1999
=2000/2001x(2001-2)
=2000/2001x2001-4000/2001
=2000-4000/2001
=1998又 1999/2001

1998.00099950025