Question

(-4/5)×(5/7)×(21/17) =​

Answer 1

$\: \: \: \: \frac{ - 4}{5} \times \frac{5}{7} \times \frac{21}{17} = \: ?$

$= \frac{ - 4 \times 5 \times 21}{5 \times 7 \times 17}$

$= \frac{ - 4 \times 3}{17}$

$= \frac{ - 12}{17}$