Question

Answer 1

1: vì: \(\dfrac{23}{5}>0;\dfrac{-12}{6}< 0\\ \Rightarrow\dfrac{23}{5}>\dfrac{-12}{6}\)

2: \(\dfrac{-15}{4}< 0;\dfrac{23}{3}>0\\ \Rightarrow\dfrac{-15}{4}< \dfrac{23}{3}\)

3:\(\dfrac{-51}{2}< 0;\dfrac{31}{5}>0\\ \Rightarrow\dfrac{-51}{2}< \dfrac{31}{5}\)

4:\(\dfrac{34}{5}=\dfrac{34\times3}{5\times3}=\dfrac{102}{15};\dfrac{25}{3}=\dfrac{25\times5}{3\times5}=\dfrac{125}{15}\\ 102< 125\\ \Rightarrow\dfrac{34}{5}< \dfrac{25}{3}\)