Question

Find 2 rational number between 3/5 and 3/4

Answer 1

$\frac{3}{5} = \frac{3 \times 4}{5 \times 4} = \frac{12}{20} \\ \frac{3}{4} = \frac{3 \times 5}{4 \times 5} = \frac{15}{20}$

So two rational number between 3/5 and 3/4 :-

$\frac{3}{5} < \frac{13}{20} < \frac{14}{20} < \frac{3}{4}$

hope it helps.