[tex] \frac{8}{9} - \frac{2}{4} = \frac{7}{18} [/tex]
[tex] \frac{3}{5} \times \frac{7}{9} = \frac{7}{15} [/tex]
[tex] \frac{5}{8} \div \frac{4}{10} = \frac{25}{16} or1 \frac{9}{16} [/tex]
