Question

insert the three rational number between 3/5and 5/7

Answer 1

3/5 and 5/7
3×5/5×7 and 5×5/7×5
15/35 and 25/355
16/35, 17/35, 18/35

Answer 2

=$\frac{3}{5} + \frac{5}{7} \\ \frac{21 + 25}{35} \\ =rational \: no. \: \frac{22}{35} \: \: \: \: \frac{23}{35} \: \: \: \frac{24}{35}$
these are three rational no.