Question 101
Find all positive integer pairs $(m, n)$ that satisfy the following conditions.
(1) $m, n \leq 20$
(2) $m$ and $n$ are relatively prime.
(3) $\frac{5}{7} \lt \frac{m}{n} \lt \frac{3}{4}$
(1) $m, n \leq 20$
(2) $m$ and $n$ are relatively prime.
(3) $\frac{5}{7} \lt \frac{m}{n} \lt \frac{3}{4}$