Rational numbers can be negative or positive.
Negative numbers can be rational but not all negative have to be rational. It all depends if they can be put into a fraction.
No, not all negative numbers are rational. There are many negative numbers that are irrational, just like the positive numbers.
It belongs to the set of negative rational numbers, negative real numbers, fractionall numbers, rational numbers, real numbers.
You do nothing. They are already rational numbers.
Yes, negative decimal numbers are rational, as long as it is terminating or repeating.
Yes - all numbers that can be written as ratios, even negative numbers, are rational numbers.
-12 belongs to at least the sets of all numbers, of integers and negative integers, of rational numbers and negative rational numbers, and all negative numbers.
They are the infinite number of rational numbers between 0 and +6
Negative rational numbers are used in the same way that negative whole numbers are used: they are simply the additive inverses of their positive counterparts.
It the two rational numbers have different signs, then the answer will be negative, otherwise it will be positive.