Question

3/âm 5 và âm 3/4

Answer 1

3/5<3/4

=>-3/5>-3/4

Answer 2

\(\dfrac{3}{-5}=\dfrac{3.4}{-5.4}=\dfrac{-12}{20}\)

\(\dfrac{3}{4}=\dfrac{3.5}{4.5}=\dfrac{15}{20}\)

Vì \(\dfrac{-12}{20}< \dfrac{15}{20}\) \(\Rightarrow\dfrac{3}{-5}< \dfrac{3}{4}\)

Answer 3

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

\(\dfrac{3}{-5}=\dfrac{-3}{5}\)

Ta thấy \(\dfrac{-3}{5}>\dfrac{-3}{4}\)

\(\Rightarrow\dfrac{3}{-5}>\dfrac{-3}{4}\)