\(\dfrac{5}{-18}=\dfrac{-5}{18}\\ \dfrac{-7}{18}< \dfrac{-5}{18}\Rightarrow\dfrac{-7}{18}< \dfrac{5}{-18}\)
Ta có:\(-\dfrac{7}{18}\) giữ nguyên
\(\dfrac{5}{-18}=-\dfrac{5}{18}\)
Vì \(-7< -5\)
\(\Rightarrow-\dfrac{7}{18}< \dfrac{5}{-18}\)
5/-18=-5/18
-7/18 và -5/18 thì -5/18 lớn nhau còn -7/18 thì bé hơn
(tick hộ)
\(\dfrac{5}{-18}=\dfrac{-5}{18}\)
\(\dfrac{-7}{18}< \dfrac{-5}{18}\Rightarrow\dfrac{-7}{18}< \dfrac{5}{-18}\)
