Question

(27)2/3 divided by (81/16)-1/4

Answer 1

$\frac{27\frac23}{\frac{81}{16}}-\frac14=\frac{83}3\cdot\frac{16}{81}-\frac14=\frac{83\cdot16\cdot4}{3\cdot81\cdot4}-\frac{3\cdot81}{3\cdot81\cdot4}=\frac{5069}{972}=5\frac{209}{972}$