Rational numbers can be negative or positive.
No; depends on the signs of the rational numbers.
No, not all negative numbers are rational. There are many negative numbers that are irrational, just like the positive numbers.
Yes. It can also be negative in the numerator. Both positive and negative numbers (as well as zero) can be rational numbers. Both positive and negative numbers can be irrational numbers. Both positive and negative numbers (as well as zero) can be integers.
Because 1. Positive integers are greater than negative integers, and 2. Division by a positive number preserves the order.
Not necessarily. +sqrt(2) is positive but not rational.
Rational numbers can be negative or positive.
Rational.
Not at all. The class of "natural" numbers are all positive, but the classes of "real" numbers and "rational" numbers include negative numbers.
Rational positive numbers
Positive numbers can be either rational or irrational.
No; depends on the signs of the rational numbers.
No.
nope. rational numbers must be positive.
Most of the time yes, positive or negative whole numbers count as rational numbers. So do positive or negative fractions.
Yes, they can.
Integers are rational numbers, whether they are positive or negative.