Question 356956
{{{((-2a^2)/(3a^2))*((20a)/(15a^3))=(-2/3)(20/15)a^(2-2+1-3)}}}
{{{((-2a^2)/(3a^2))*((20a)/(15a^3))=-(8/9)a^(-2)}}}
{{{((-2a^2)/(3a^2))*((20a)/(15a^3))=highlight(-8/(9a^2))}}}