a)
[tex]6 \div \frac{2}{3} = \frac{6}{1} \div \frac{2}{3} = \frac{6}{1} \times \frac{3}{2} = \frac{18}{2} = 9[/tex]
[tex]8 \div 2 \frac{2}{3} = \frac{8}{1} \div \frac{8}{3} = \frac{8}{1} \times \frac{3}{8} = \frac{24}{8} = 3[/tex]
b)
[tex]2 \frac{1}{3} \div \frac{7}{8} = \frac{7}{3} \div \frac{7}{8} = \frac{7}{3} \times \frac{8}{7} = \frac{1}{3} \times \frac{8}{1} = \frac{8}{3} = 2 \frac{2}{3} [/tex]
[tex]1 \frac{1}{8} \div 1 \frac{4}{5} = \frac{9}{8} \div \frac{9}{5} = \frac{9}{8} \times \frac{5}{9} = \frac{1}{8} \times \frac{5}{1} = \frac{5}{8} [/tex]
