Question

for any two rational numbers A and B, A + B is equals to

Answer 1

Answer:

For any two rational numbers a and b, a + b is always a rational number.

Rational numbers are closed under addition.

Answer 2

GIven: A and B are rational number

Let us consider A be $\frac{2}{3}$ and B be $\frac{3}{5}$.

$A+B=\frac{2}{3}+\frac{3}{5}$

$A+B=\frac{10+9}{15}$

$A+B=\frac{19}{15}$

Hence, $\frac{19}{15}$ is the rational number.

Therefore, $A+B$ is equal to a rational number.