简便运算:2001÷ 1998|1999

问题描述:

简便运算:2001÷ 1998|1999

谷哥22为您
=(1998+3)x1999/1998
=1998x1999/1998+3x1999/1998
=1999+3x(1+1/1998)
=1999+3x1+3x1/1998
=1999+3+1/666
=2002+1/666
=2002又1/666
有不明白的地方可以向我追问,请讲解.
更上一层楼.