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当前位置:首页 >> 2017除以2017又2018分之2017 >>

2017除以2017又2018分之2017

2017除以2017又2018分之2017 2017÷2017又2017/2018 =2017÷(2017+2017/2018) =(2017÷2017)÷【2017*(1+1/2018)÷2017】 =1÷(1+1/2018) =2018/2019 商不变性质

2017除以2017又2018分之2017 =2017÷(2017+2017/2018) =2017÷2017÷(1+1/2018) =1÷2019/2018 =2018/2019

等于2018分之2018平方减1,主要是练习平方差公式的运用吧

解:依题意得算式, 2016÷2016又2017分之2016+1÷2018 =2016÷2017分之(2016×2017+2016)+2018分之1 =2016÷2017分之【2016×(2017+1)】+2018分之1 =2016÷2017分之(2016×2018)+2018分之1 =2016×(2016×2018)分之2017+2018分之1 =2018分之2017+...

2016÷2016又2017分之2016 =(2016÷2016)÷(2016÷2016+2017分之2016÷2016) =1÷(1+2017分之2016) =1÷2017分之2018 =2018分之2017

简便计算 (2017x2018-2019)÷(2017+2018x2015) =(2015x2018+2×2018-2019)÷(2017+2018x2015) =(2015x2018+4036-2019)÷(2017+2018x2015) =(2015x2018+2017)÷(2017+2018x2015) =1

=(2018-1)×2019/2018 =2018×2019/2018-2019/2018 =2019-2019/2018 =2017又2017/2018

2016/2016又2017分之2016 =2016/[(2016x2017+2016)/2017] =2016 x 2017/(2016x2017+2016) =2017/(2017+1) =2017/2018 希望能帮到你哦

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