What is 3 sevenths plus 3 sixths?

To add ( \frac{3}{7} ) and ( \frac{3}{6} ), first find a common denominator. The least common multiple of 7 and 6 is 42. Converting both fractions, ( \frac{3}{7} ) becomes ( \frac{18}{42} ) and ( \frac{3}{6} ) becomes ( \frac{21}{42} ). Adding these gives ( \frac{18}{42} + \frac{21}{42} = \frac{39}{42} ), which simplifies to ( \frac{13}{14} ).