[tex]answer = \frac{1}{2} \\ solution \\ \frac{ - 4}{5} \times \frac{3}{7} \times \frac{15}{16} \times ( \frac{ - 14}{9} ) \\ = \frac{ - 4 \times 3 \times 15 \times ( - 14)}{5 \times 7 \times 16 \times 9} \\ = \frac{2520}{5040} \\ = divide \: 5040 \: by \: 2520 \: \\ = \: \frac{1}{2} \\ hope \: it \: helps[/tex]
