
2020÷2020又2020/2021等于多少?
展开全部
2020 ÷ 2020又2020/2021
= 2020 ÷ [(2020×2021+2020)/2021]
= 2020 ÷ (2020×2022/2021)
= 2020/2022 × 2021/2020
= 2021/2022
= 2020 ÷ [(2020×2021+2020)/2021]
= 2020 ÷ (2020×2022/2021)
= 2020/2022 × 2021/2020
= 2021/2022
追答
小童鞋咋不采纳
展开全部
2020÷2020又2020/2021
=2020÷( 2020 + 2020/2021)
=2020÷[( 2020x2021+ 2020)/2021]
=2020x2021/( 2020x2021+ 2020)
=2021/( 1x2021+ 1)
=2021/2022
=2020÷( 2020 + 2020/2021)
=2020÷[( 2020x2021+ 2020)/2021]
=2020x2021/( 2020x2021+ 2020)
=2021/( 1x2021+ 1)
=2021/2022
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展开全部
2020÷2020=1
2020/2021=1-1/2021=0.999505
2020/2021=1-1/2021=0.999505
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