To simplify the expression \(\sqrt{\frac{1}{144}}\) using the quotient rule for square roots, we can separate the square root of the numerator and the denominator:
\[ \sqrt{\frac{1}{144}} = \frac{\sqrt{1}}{\sqrt{144}} \]
Now, calculate each square root:
- \(\sqrt{1} = 1\)
- \(\sqrt{144} = 12\)
Putting it all together, we get:
\[ \sqrt{\frac{1}{144}} = \frac{1}{12} \]
Thus, the final simplified expression is:
\[ \frac{1}{12} \]