(75,23)\left(\frac{7}{5}, \frac{2}{3}\right)(57,32)
(32,85)\left(\frac{3}{2}, \frac{8}{5}\right)(23,58)
(75,32)∪(32,65)\left(\frac{7}{5}, \frac{3}{2}\right) \cup\left(\frac{3}{2}, \frac{6}{5}\right)(57,23)∪(23,56)
(75,85)\left(\frac{7}{5}, \frac{8}{5}\right)(57,58)