Simplify the complex fraction. \( \frac{25 a^{4} b^{3}}{7 a} \) \( \frac{5 a b^{4}}{b^{2}} \)
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To simplify the complex fraction \( \frac{25 a^{4} b^{3}}{7 a} \div \frac{5 a b^{4}}{b^{2}} \), we first change the division to multiplication by the reciprocal: \[ \frac{25 a^{4} b^{3}}{7 a} \times \frac{b^{2}}{5 a b^{4}} \] Next, we can multiply the numerators and the denominators: \[ \frac{25 a^{4} b^{3} \cdot b^{2}}{7 a \cdot 5 a b^{4}} \] This simplifies to: \[ \frac{25 a^{4} b^{5}}{35 a^{2} b^{4}} \] Next, we simplify the numerical and variable parts: - The numerical part simplifies: \( \frac{25}{35} = \frac{5}{7} \) - The variable part \( a^{4} / a^{2} = a^{2} \) and \( b^{5} / b^{4} = b^{1} \) Final simplification yields: \[ \frac{5 a^{2} b}{7} \] So, the simplified form of the complex fraction is \( \frac{5 a^{2} b}{7} \).
