Question 192458
Simplify:
{{{5a^2b(2ab)^3/20a^5b^7 = a^2b(2ab)^3/4a^5b^7}}}={{{(2ab)^3/4a^3b^6 = 8a^3b^3/4a^3b^6}}}={{{highlight(2/b^3)}}}