Question

bracket 1 by 2 / 4 by 5 bracket close x 4 by 7

Answer 1

(1/2/4/5)×4/7=5/8×4/7=5/14
is your answer

Answer 2

$( \frac{ \frac{1}{2} }{ \frac{4}{5} } ) \times \frac{4}{7} \\ (\frac{1}{2} \times \frac{5}{4} ) \times \frac{4}{7} \\ \frac{5}{8} \times \frac{4}{7} \\ = \frac{5}{14}$