[tex]0.5 \div \frac{1}{2} - 0.75 \times \frac{4}{3} = \\ = \frac{5}{10} \div \frac{1}{2} - \frac{75}{100} \times \frac{4}{3} \\ = \frac{1}{2} \times 2 - \frac{3}{4} \times \frac{4}{3} \\ = \frac{2}{2} - \frac{12}{12} \\ = 1 - 1 \\ = 0.[/tex]
