如图所示,2017除以2017又2018分之2017,用简便方法
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
热门标签: