16. Calcule a raiz e reduza as frações. a) sqrt [3]((8)/(27)) square c) sqrt [5](-(1)/(243)) square b) sqrt [4]((81)/(10000)) square d) sqrt [6]((729)/(64)) square

a) $$\sqrt [3]{\frac {8}{27}} = \frac {2}{3}$$
c) $$\sqrt [5]{-\frac {1}{243}} = -\frac {1}{3}$$
b) $$\sqrt [4]{\frac {81}{10000}} = \frac {3}{10}$$
d) $$\sqrt [6]{\frac {729}{64}} = \frac {3}{2}$$