Is 18 an Irrational Number?
The number 18 is an irrational number if 18 canNOT be expressed as a ratio, as in irRATIOnal.
A quotient is the result you get when you divide one number by another number. For 18 to be an irrational number, the quotient of two integers canNOT equal 18.
In other words, for 18 to be an irrational number, 18 canNOT be expressed as a ratio where both the numerator and denominator are integers (whole numbers).
The number 18 can be expressed as 18/1 where 18 is the numerator and 1 is denominator.
Thus, the answer to the question "Is 18 an irrational number?" is NO.