a)
[tex]3 \frac{1}{6} - \frac{1}{3} = 3 \frac{1}{6} - \frac{2}{6} = 2 \frac{7}{6} - \frac{2}{6} = 2 \frac{5}{6} [/tex]
b)
[tex]6 \frac{1}{12} - 2 \frac{1}{2} = 6 \frac{1}{12} - 2 \frac{6}{12} = 5 \frac{13}{12} - 2 \frac{6}{12} = 3 \frac{7}{12} [/tex]
c)
[tex]5 \frac{1}{12} - 1\frac{2}{7} = 5 \frac{7}{84} - 1 \frac{24}{84} = 4 \frac{91}{84} - 1 \frac{24}{84} = 3 \frac{67}{84} [/tex]
d)
[tex]14 \frac{7}{18} - 11 \frac{12}{27} = 14 \frac{42}{108} - 11 \frac{48}{108} =13 \frac{150}{108} - 11 \frac{48}{108} = 2 \frac{102}{108} = 2 \frac{51}{54} [/tex]
