Question

$4 \sqrt{16 \div 81}$
​

Answer 1

Answer:

2/3

Step-by-step explanation:

$\sqrt[4]{ \frac{16}{81} } = \sqrt[4]{ \frac{2 \times 2 \times 2 \times 2}{3 \times 3 \times 3 \times 3} } = \frac{2}{3}$