A rational number is ____ a real number.
a. always
b. never
c. sometimes
its always ???????
http://www.mathsisfun.com/rational-numbers.html
Correct, a rational number is always a real number.
To determine whether a rational number is always a real number, we need to understand the definitions of these terms.
A rational number is a number that can be expressed as the ratio of two integers, where the denominator is not zero. For example, 1/2, 3/4, -5/7 are all rational numbers.
On the other hand, a real number is a number that can be represented on the number line. It includes all rational numbers, as well as irrational numbers, which cannot be expressed as a fraction of two integers. Examples of irrational numbers include the square root of 2 (√2), pi (π), and e.
Since all rational numbers can be represented on the number line, it is correct to say that a rational number is always a real number. Therefore, the answer is "a. always."