Question

Divide :
1. The sum of 65/13and 5/7
and
by their difference 65/13and5/7
​

Answer 1

$\frac{ \frac{65}{13} + \frac{5}{7} }{ \frac{65}{13} - \frac{5}{7} } \\ = \frac{ \frac{455 + 65}{91} }{ \frac{455 - 65}{91} } \\ = \frac{520}{390} \\ = \frac{4}{3} \: answer$