Question

Rational numbers are closed under addition because
A. Any two rational numbers can be added in any order
B. The sum of any two rational numbers is again a rational number
C. The sum of any three rational numbers is independent of the way the three numbers are grouped together
D. The sum of 0 and any rational number is the same rational number

Answer 1

Answer:

Ans- D. The sum of 0 and any rational number is the same rational number

Answer 2

B is the correct answer as when you add any 2 rational numbers they will sum to be a rational number always.