Question 252154
{{{6a^2/8b^6}}} x {{{8 b^4/7a^4}}}
=

[(6a^2)*(b^-6)]/8 * [(8b^4*a^-4)]/7 =
6a^(2-4) * 8b^(-6+4)/(8*7) =
[6a^-2 * b^-2]/7 =
6/[7*((a^2)*(b^2))]