The fraction \( \frac{2}{8} \) can be simplified by dividing both the numerator and the denominator by their greatest common divisor, which is 2.
\[ \frac{2 \div 2}{8 \div 2} = \frac{1}{4} \]
So, \( \frac{1}{4} \) is an equivalent fraction to \( \frac{2}{8} \).