Question

so sanh 2 phan so sau:

\(\frac{2017}{1019}\)va \(\frac{2018}{2020}\)

ai tra loi duoc thi ket ban voi minh nhe

Answer 1

Ta có:

\(\frac{2017}{2019}=1-\frac{2}{2019}\)

\(\frac{2018}{2020}=1-\frac{2}{2020}\)

Vì \(\frac{2}{2019}>\frac{2}{2020}\)

=> \(1-\frac{2}{2019}>1-\frac{2}{2020}\)

=> \(\frac{2017}{2019}>\frac{2018}{2020}\)

Answer 2

\(\frac{2017}{1019}>\frac{2018}{2020}\)

Answer 3

Ta có: \(2017>1019\)

\(\Rightarrow\frac{2017}{1019}>1\)

\(\Rightarrow\frac{2017}{1019}>\frac{2017+1}{1019+1}=\frac{2018}{1020}>\frac{2018}{2020}\)

   Vậy \(\frac{2017}{1019}>\frac{2018}{2020}\)