Question

\(Sos\text{ánh}\frac{2018}{2019}+\frac{2019}{2020}+\frac{2020}{2021}v\text{ới}3\)

Cần gấp

Answer 1

Trả lời

So sánh cái nào vs cái nào ạ

sao chỉ thấy có 1 vế ạ !

Answer 2

vi 2018/2019<1

   2019/2020<1

   2020/2021<1

nen 2018/2019 + 2019/2020 + 2020/2021<1+1+1=3

Answer 3

                                         Bài giải

                Ta có : 

\(\frac{2018}{2019}< 1\)

\(\frac{2019}{2020}< 1\)

\(\frac{2020}{2021}< 1\)

\(\Rightarrow\text{ }\frac{2018}{2019}+\frac{2019}{2020}+\frac{2020}{2021}< 1+1+1=3\)

\(\text{Vậy }\frac{2018}{2019}+\frac{2019}{2020}+\frac{2020}{2021}< 3\)

Answer 4

                                         Bài giải

                Ta có : 

\(\frac{2018}{2019}< 1\)

\(\frac{2019}{2020}< 1\)

\(\frac{2020}{2021}< 1\)

\(\Rightarrow\text{ }\frac{2018}{2019}+\frac{2019}{2020}+\frac{2020}{2021}< 1+1+1=3\)

\(\text{Vậy }\frac{2018}{2019}+\frac{2019}{2020}+\frac{2020}{2021}< 3\)