Final answer:
The expression (-18/6) simplifies to -3, which is a negative and rational number but not an improper fraction or a prime number. The correct answer is D) Prime number.
Step-by-step explanation:
The expression (-18/6) simplifies to -3. Let's examine the options provided in the question:
- A) Negative number: This is correct, as -3 is less than zero.
- B) Improper fraction: This is incorrect. An improper fraction is a fraction where the numerator is greater than or equal to the denominator. Since -3 is an integer, not a fraction, this does not apply.
- C) Rational number: This is correct. A rational number is any number that can be expressed as the quotient or fraction of two integers. Since -3 can be written as (-3)/1, it is indeed a rational number.
- D) Prime number: This is incorrect. Prime numbers are natural numbers greater than 1 that have no positive divisors other than 1 and themselves. Since -3 is a negative integer, it cannot be a prime number.
The name that does not describe (-18/6) is D) Prime number.