Which of the following is NOT a property of integer numbers? For two integers 'a' and 'b'.*1 pointa*ba/ba - ba+b

To determine which of the given options is not a property of integers, let’s analyze each expression based on the properties of integer arithmetic.

1. Expression (1): $ab$

   • This represents the product of two integers $a$ and $b$. The product of two integers is always an integer. This is a property of integers.

2. Expression (2): $\frac{a}{b}$

   • This represents the division of $a$ by $b$. The result is not necessarily an integer unless $b$ divides $a$ evenly (i.e., $b$ is a divisor of $a$). Thus, this expression does not always yield an integer.

3. Expression (3): $a - b$

   • This represents the difference between two integers, which is also an integer. This follows the property of closure under subtraction for integers.

4. Expression (4): $a + b$

   • This represents the sum of two integers, which is also an integer. This follows the property of closure under addition for integers.

Final Answer

Therefore, the expression that is NOT a property of integer numbers is $\frac{a}{b}$, as it does not always result in an integer.