[tex] \frac{2}{6} + \frac{3}{6} = \frac{5}{6} = \frac{1}{3} = 3[/tex]
[tex] \frac{8}{8} - \frac{3}{8} = \frac{5}{8} = \frac{1}{4} = 4[/tex]
[tex] \frac{4}{8} + \frac{3}{8} = \frac{7}{8} = \frac{1}{2} = 2[/tex]
[tex] \frac{7}{8} - \frac{5}{8} = \frac{2}{8} = \frac{1}{4} = 4[/tex]