Question

\(\dfrac{-3}{5}\) và \(\dfrac{-4}{10}\)

Answer 1

Ta có : `(-3)/5 = (-3 xx 2)/(5xx2)= -6/10 ; -4/10`

Mà `-6 < (-4)`

`=> (-3)/5 < (-4)/10`

Answer 2

\(\dfrac{-3}{5}\) và \(\dfrac{-4}{10}\) (MC: 10)

\(\dfrac{-3.2}{5.2}\) và \(\dfrac{-4}{10}\) 

\(\dfrac{-6}{10}\) và \(\dfrac{-4}{10}\) 

\(\Rightarrow\dfrac{-3}{10}>\dfrac{-4}{10}\) vì \(\dfrac{-6}{10}>\dfrac{-4}{10}.\)