To simplify the expression \(\frac{4}{5} \div 3\), we follow these steps:
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Convert the division into multiplication: Dividing by a number is the same as multiplying by its reciprocal. So, we can rewrite the division as follows: \[ \frac{4}{5} \div 3 = \frac{4}{5} \cdot \frac{1}{3} \]
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Multiply the fractions: Now, we multiply the numerators and the denominators: \[ \frac{4 \cdot 1}{5 \cdot 3} = \frac{4}{15} \]
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Check for simplification: The fraction \(\frac{4}{15}\) is already in its simplest form since 4 and 15 have no common factors other than 1.
Thus, the answer is: \[ \frac{4}{15} \]