A unit fraction is a fraction where the numerator is 1 and the denominator is a positive integer. In other words, it can be expressed in the form \( \frac{1}{n} \), where \( n \) is a positive integer. For example, \( \frac{1}{2} \), \( \frac{1}{3} \), and \( \frac{1}{4} \) are all unit fractions.
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A fraction of the form for a positive integer . Its numerator is 1 and its denominator determines it uniquely.