Question

So sánh :

A = 2016/2017 + 2017/2018 + 2018/2019 vs 3

Answer 1

Ta có : \(\frac{2016}{2017}< \frac{2017}{2017}=1\)

            \(\frac{2017}{2018}< \frac{2018}{2018}=1\)

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

Nên : \(\frac{2016}{2017}+\frac{2017}{2018}+\frac{2018}{2019}< 1+1+1=3\)

Answer 2

\(\frac{2016}{2017}< 1\)

\(\frac{2017}{2018}< 1\)

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

=> \(\frac{2016}{2017}+\frac{2017}{2018}+\frac{2018}{2019}< 1+1+1=3\)