Question 88653
The expression


{{{(-1/2)(8/4)(12)}}}


really looks like


{{{(-1/2)(8/4)(12/1)}}}



Multiply the numerators and the denominators separately

{{{(-1*8*12)/(2*4*1)}}}


{{{(-1*8*12)/(8)}}} Multiply the denominator


{{{(-1*cross(8)*12)/cross(8)}}} Cancel like terms


{{{-12/1}}} Simplify


{{{-1/12}}} Now take the reciprocal