[tex]1)\frac{5}{3} - \frac{2}{4} = \frac{5 \times 4}{3 \times 4} - \frac{2 \times 3}{4 \times 3} = \frac{20}{12} - \frac{6}{12} = \frac{20 - 6}{12} = { \frac{14}{12} }^{(2} = \frac{7}{6} = 1 \frac{1}{6}[/tex]
[tex]2){5}^{3} - {2}^{4} = 125 - 16 = 109[/tex]
