Question

neu ta co tinh chat x>y,y>z thi hay so sanh  \(\frac{13}{38}va\frac{-12}{-37}\)

Answer 1

Ta có: \(\frac{13}{38}>\frac{13}{39}=\frac{1}{3}\)

           \(\frac{-12}{-37}=\frac{12}{37}\frac{12}{37}hay\frac{13}{38}>\frac{-12}{-37}\)

Answer 2

\(\text{Ta thấy : }\frac{13}{38}>\frac{13}{39}=\frac{1}{3}\)

                     \(\frac{-12}{-37}\frac{-12}{-37}\)