2017除以（2017+2017/2018）*2019/2018的简便计算

Question

2017除以（2017+2017/2018）*2019/2018的简便计算

Answer 1

2017÷(2017+2017/2018)×2019/2018
=2017÷(2017(1+1/2018)×2019/2018
=1÷(1+1/2018)×2019/2018
=1÷2019/2018×2019×2018
=2018/2019×2019/2018
=1本回答被提问者采纳