Question

-7/20*5/28/2/16

Answer 1

$\cfrac{-7}{20}*\cfrac{5}{28}/\cfrac{2}{16}=-\cfrac{7}{4*5}*\cfrac{5}{7*4}*\cfrac{4*4}{2}=-\cfrac{\cancel{7}}{\cancel{4}*\cancel{5}}*\cfrac{\cancel{5}}{\cancel{7}*\cancel{4}}*\cfrac{\cancel{4}*\cancel{4}}{2}=-\cfrac{1}{2}$

Answer is: $-\cfrac{1}{2}$