Question 189808
{{{(5y-10)/(-5y)}}} Start with the given expression



{{{(5y)/(-5y)-10/(-5y)}}} Break up the fraction



{{{-(5y)/(5y)+10/(5y)}}} Simplify



{{{-1+2/y}}} Reduce



So {{{(5y-10)/(-5y)=-1+2/y}}} where {{{y<>0}}}