Question 894002
{{{-20*(1/2)=-10}}}
{{{-10*(2/3)=-20/3}}}
{{{-(20/3)*(3/4)=-5}}}
{{{-5*(4/5)=-4}}}
So increase the numerator and denominator by {{{1}}} for each successive value.
{{{-4*(5/6)=-10/3}}}
{{{-(10/3)*(6/7)=-60/21}}}
{{{-(60/21)*(7/8)=-5/2}}}