a) ta thấy :
\(\frac{-1}{25}0\)
=>\(\frac{-1}{25}
So sánh \(\frac{-788}{789}\) và \(\frac{-789}{788}\)
b) \(\frac{2015}{2016}\)và \(\frac{104}{103}\)
TC: \(\frac{2015}{2016}< 0\)
\(\frac{104}{103}>0\)
\(\Rightarrow\text{}\frac{2015}{2016}< \frac{104}{103}\)