The closure property states that the sum (or product, or difference) of two rational numbers is always a rational number. To determine if a sum of numbers results in a rational number, we need to check if both numbers being added are rational.
A number is considered rational if it can be expressed as a fraction \(\frac{a}{b}\), where \(a\) and \(b\) are integers and \(b \neq 0\).
If you provide specific sums, I can help you analyze whether each of them results in a rational number.