Question

giúp e với ạ

 

Answer 1

\(\dfrac{130}{-400}=\dfrac{-13}{40}=\dfrac{-39}{120}\)

\(\dfrac{-39}{72}=\dfrac{-13}{24}=\dfrac{-65}{120}\)

Do \(-39>-65\) và \(120>0\) nên \(-\dfrac{39}{120}>-\dfrac{65}{120}\)

Vậy \(\dfrac{130}{-400}>\dfrac{-39}{72}\)