Question

So sánh \(\frac{n}{n+1}\)và \(\frac{n+2015}{n+2016}\)

Answer 1

Vi \(\frac{a}{b}>\frac{a+c}{b+c}\)

 \(\Rightarrow\frac{n}{n+1}>\frac{n+2015}{n+1+2015}=\frac{n+2015}{n+2016}\)

 \(\Rightarrow\frac{n}{n+1}>\frac{n+2015}{n+2016}\)

Answer 2

vi a/b <a+c/b+c

n/n+1<n+2015/n+1+2015=n+2015/n+2016

n/n+1<n+2015/n+2016