1. The difference of two rational numbers is always a natural number. TRUE
2. The ratio of two rational numbers is always positive .FALSE
3. The difference of two rational numbers is always a rational number. TRUE
4. The quotient of two rational numbers is always a real number (provided the denominator is non-zero). FALSE
5. The quotient of two rational numbers is always a rational number (provided the denominator is non-zero).TRUE
6. The sum of two rational numbers is always a rational number. FALSE
7. The product of two rational numbers is always a rational number. FALSE