Question 334904
{{{((-2a^2)/(3a^2))*(20a/(15a^3))=(-40/45)a^(2-2+1-3)}}}
{{{((-2a^2)/(3a^2))*(20a/(15a^3))=(-8/9)a^(-2)}}}
{{{((-2a^2)/(3a^2))*(20a/(15a^3))=-8/(9a^2)}}}