Convert both decimals to fractions with the same denominator.<br><br>
&bull; 0.32 = \(\frac{32}{100}\)<br>
&bull; \(\frac{3}{10} = \frac{30}{100}\)<br>
&bull; Missing part = \(\frac{32}{100} - \frac{30}{100} = \frac{2}{100} = \frac{1}{50}\)<br><br>
Final Answer: \(\frac{1}{50}\)