Convert to a common denominator (tenths), then subtract.<br><br>
&bull; \(\frac{1}{2} = \frac{5}{10}\)<br>
&bull; \(\frac{5}{10} - \frac{1}{10} = \frac{4}{10}\)<br>
&bull; Simplify: divide numerator and denominator by 2.<br>
&bull; \(\frac{4}{10} = \frac{2}{5}\)<br>
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Final Answer: A: \(\frac{2}{5}\)