Which number is a rational number, but not an integer? - 144−−−√- square root 218/12 184/4 99

184/4

Step-by-step explanation:

A rational number is a number in the form p/q where the numerator and denominator (p and q) are both integers but the denominator q is not equal to zero (q ≠ 0)

An integer is a whole number (not fractional) that is either positive, negative or zero.

From the question:

-144 is an integer because it is a negative whole number. Also -144 can be represented as -144 / 1, hence it is a rational number

√218/12 is neither a rational number or integer

184/4 is not an integer because it is not a whole number. 184/4 is a rational number

99 is an integer because it is a positive whole number. Also 99 can be represented as 99 / 1, hence it is a rational number

1/4 because there is 4 grades.