如图所示，2017除以2017又2018分之2017，用简便方法

更新时间2019-03-26 22:18:09

2017÷2017又2017/2018

=2017÷(2017×2018+2017）/2018

=2017×2018／(2017×2019)

=2018/2019

2017/(2017+2017/2018)

=2017/[2017(1+1/2018)]

=1/(1+1/2018)

=1/(2019/2018)

=2018/2019

2017÷2017又2017/2018

=2017÷(2017+2017/2018)

=2017÷[2017×(1+1/2018)]

=2017÷2017÷2019/2018

=1×2018/2019

=2018/2019

2017除2017又2018分之[2017+1]

=2017除2018-2018分之1

=2018分之[2017-1]

=2018分之2016

=1009分之1008

2017÷(2017+2017/2018)

=2017÷[2017×(1+1/2018)]

=2014×1/2017×2018/2019

=2018/2019