Ta có:
\(1-\frac{15}{17}=\frac{2}{17}\)
\(1-\frac{19}{21}=\frac{2}{21}\)
Vì \(\frac{2}{17}>\frac{2}{21}\Rightarrow\frac{15}{17}< \frac{19}{21}\)
\(\Rightarrow-\frac{15}{17}>-\frac{19}{21}\)
hoc van trong trang nay nhung khong dang ki hoc ben ngoai co diem vao trong trang nay khong
Ta có :
\(1-\frac{15}{17}=\frac{2}{17}\)
\(1-\frac{19}{21}=\frac{2}{21}\)
Do \(\frac{2}{17}>\frac{2}{21}=>-\frac{15}{17}>\frac{-19}{21}\)
Ủng hộ nha