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A fraction is called improper when which of the following is true?

AThe numerator is less than the denominator
BThe denominator is exactly double the numerator
CThe numerator is at least the denominator
DThe numerator and denominator share no factor
Answer & Solution
Correct answer: C. The numerator is at least the denominator
1. A proper fraction has a numerator smaller than its denominator, such as 1/2. 2. An improper fraction is the opposite case. 3. The fraction a/b is an improper fraction when a is greater than or equal to b, which means the numerator is at least the denominator. 4. Being exactly double is only one special case rather than the general rule, and sharing no common factor describes a simplified fraction, not an improper one. _Source: OpenStax Prealgebra (CC BY 4.0), Ch 4 "Fractions", section 4.1 Visualize Fractions_
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