Find \(\frac{3}{4}\) of \(\frac{1}{2}\) kg. "Of" means multiply.<br><br>
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&bull; \(\frac{3}{4} \times \frac{1}{2} = \frac{3 \times 1}{4 \times 2} = \frac{3}{8}\)<br><br>
Mrs Kway-kway used \(\frac{3}{8}\) kg of sugar.<br>
Check: \(\frac{3}{8} \div \frac{3}{4} = \frac{3}{8} \times \frac{4}{3} = \frac{1}{2}\) ✓<br><br>
Final Answer: \(\frac{3}{8}\)