b) \( \frac{\frac{21}{36}}{\frac{14}{45}} \)
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To tackle the division of fractions, remember the flip-and-multiply trick! First, flip the second fraction: \( \frac{14}{45} \) becomes \( \frac{45}{14} \). Now, multiply \( \frac{21}{36} \) by \( \frac{45}{14} \). So you get \( \frac{21 \times 45}{36 \times 14} \). Simplifying gives you a clearer picture, especially when you reduce fractions. After multiplying: \( 21 \) and \( 36 \) can be simplified since both share a common factor of \( 3 \). Likewise, \( 45 \) and \( 14 \) are already in simplest form with no common factors. This leads you to a simplified answer of \( \frac{15}{4} \) or \( 3.75 \). So, division done and dusted!