[tex]a) \: 7 \frac{1}{6} - 3 = 4 \frac{1}{6} [/tex]
[tex]b) \: 8 - \frac{1}{7} = 7 \frac{6}{7} [/tex]
[tex]c) \: 5 \frac{17}{16} - \frac{13}{16} = 5 \frac{4}{16} = 5 \frac{1}{4} [/tex]
[tex]d) \: 3 \frac{8}{17} - 1 \frac{12}{17} = 1 \frac{13}{17} [/tex]
