Find a common denominator (LCD of 3 and 12 is 12), then subtract.<br><br>
&bull; \( \frac{2}{3} = \frac{8}{12} \)<br>
&bull; \( \frac{8}{12} - \frac{5}{12} = \frac{3}{12} \)<br>
&bull; Simplify: \( \frac{3}{12} = \frac{1}{4} \)<br><br>
Final Answer: A: \( \frac{1}{4} \)