Question 818353
Same as 1/(-27^(4/3))={{{1/(-27^(4/3))}}}
{{{1/((-1)^(4/3)*(3^3)^(4/3))}}}
{{{1/(1*3^4)}}}
ANSWER:  {{{1/81}}}


Only part to watch for is -1^(4/3).
The "4" in the rational exponent makes this positive because it's and even power, and the (1/3) means "cubed root of" 1.