简便运算:2001÷ 1998|1999

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简便运算:2001÷1998|1999简便运算:2001÷1998|1999简便运算:2001÷1998|1999谷哥22为您=(1998+3)x1999/1998=1998x1999/1998+3x

简便运算:2001÷ 1998|1999
简便运算:2001÷ 1998|1999

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.

=(1998+3)×1999/1998
==1998×1999/1998+3×1999/1998
=1999+3×(1+1/1998)
=1999+3×1+3×1/1998
=1999+3+1/666
=2002又1/666