What is the sum of the largest and the smallest of the given fractions ?

$\frac{6}{5},\frac{11}{15},\frac{4}{7},\frac{5}{13}$

 $\frac{103}{65}$

The smallest fraction among these = $\frac{5}{13}$

The biggest fraction among these = $\frac{6}{5}$

The sum of smallest and largest fractions = $\frac{5}{13}$ + $\frac{6}{5}$ = $\frac{103}{65}$