If a rational number is represented by the letter a, is the number a a positive or negative? And give examples.

If a rational number is represented by the letter a, is the number a a positive or negative? And give examples.

Well, I think a can be either a positive number or a negative number, or 0. Because rational numbers include positive rational numbers; positive rational numbers;0. So a can be both positive and negative numbers, or 0.

A rational number is an integer and a fraction; a rational number is a positive number and a negative number; there is no maximum rational number, and the minimum rational number is 0; the absolute value of a rational number is non-negative; several numbers are multiplied, and when the number of negative factors is odd, the product is negative; and the reciprocal is equal to the rational number itself. A.2 Nos. B.3 Nos. C.4 Nos. D. More than 4

1 Correct, conforming to the definition of rational number;
2 Error and 0;
3 Error, no maximum rational number, no minimum rational number;
4 Correct, conforming to the nature of absolute value;
5 Error, error when there is 0;
6 And -1, so A.