When numerators are equal, the fraction with the smallest denominator is the largest.<br><br>
&bull; All numerators are 1.<br>
&bull; Compare denominators: 10, 7, 9, 6. Smallest denominator = 6.<br>
&bull; \( \frac{1}{6} \) is the largest fraction.<br><br>
Final Answer: D: \( \frac{1}{6} \)