Final answer:
A proper fraction is a fraction where the numerator is less than the denominator. The example of a proper fraction in the options is 3/4.
Step-by-step explanation:
A proper fraction is a fraction where the numerator is less than the denominator. In other words, the value of the fraction is less than 1. Therefore, the example of a proper fraction in the options is 3/4, as both the numerator (3) and denominator (4) are positive integers and the numerator is less than the denominator.
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