[tex] \frac{7}{8} - \frac{3}{8} = \frac{4}{8} ^{(4} = \frac{1}{2} [/tex]
[tex] \frac{9}{16} - \frac{1}{16} = \frac{8}{16} ^{(8} = \frac{1}{2} [/tex]
[tex] \frac{11}{12} - \frac{7}{12} = \frac{4}{12} ^{(4} = \frac{1}{3} [/tex]
[tex] \frac{11}{5} - \frac{6}{5} = \frac{5}{5} ^{(5} = 1[/tex]
