Mathematics for IGCSE & O level - Number (Section 1 - No. 12)
Which of these is a correct description of a rational number?
A number that cannot be expressed as a fraction.
A number that can be expressed as a terminating or recurring decimal.
A number that cannot be written as the product of its prime factors.
A number that has an infinite number of factors.
解释
A rational number can be expressed as a fraction, meaning it will produce a terminating or recurring decimal.