Yes.
This is the same as asking for one rational number to be subtracted from another; to do this each rational number is made into an equivalent rational number so that the two rational numbers have the same denominator, and then the numerators are subtracted which gives a rational number which may possibly be simplified.
Yes. The sum, difference, product, and quotient (if the second number is not zero) of two rational numbers, are all rational.
Yes, it is.
Yes. The rational numbers are a closed set with respect to subtraction.
The question cannot be answered because it is nonsensical. The difference between two rational numbers is very very rarely a whole number.
The product of two rational numbers is always a rational number.
Yes.
They are always rational.
no
Yes, it is.
No.
Yes, that's true.
Yes. The rational numbers are a closed set with respect to subtraction.
No, it is not true.
The question cannot be answered because it is nonsensical. The difference between two rational numbers is very very rarely a whole number.
No. 5 and 2 are real numbers. Their difference, 3, is a rational number.
The product of two rational numbers is always a rational number.
Yes.
Such a sum is always rational.
They are always rational.