California Assessment of Student Performance and Progress (CAASPP) Math Practice Exam

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What type of number is referred to as a rational number?

A number that cannot be expressed as a fraction
A number that can be written as a repeating decimal
Any number that can be expressed as a fraction of integers
A number that is always a whole number

The correct answer is: Any number that can be expressed as a fraction of integers

A rational number is defined as any number that can be expressed as a fraction, where both the numerator and the denominator are integers, and the denominator is not zero. This definition encompasses both whole numbers and fractions, as whole numbers can be written as a fraction by having them over 1 (for example, 5 can be expressed as 5/1). Additionally, rational numbers can also include decimals that terminate or repeat, as these can be converted into fraction form as well. Therefore, the correct definition encompasses a wide range of numbers that fit the criteria of being expressible in fractional form, solidifying the classification of rational numbers effectively.