[tex] \frac{3}{7} + \frac{5}{7} = \frac{7}{7} \\ \frac{3}{7} + \frac{2}{7} = \frac{5}{7 } \\ \frac{3}{7} + \frac{4}{7} = \frac{7}{7 } \\ \frac{3}{7} + \frac{1}{7} = \frac{4}{7} \\ \frac{3}{7} + \frac{3}{7} = \frac{6}{7} [/tex]
CHATMARRON
