What negative numbers are not integers?

Question

Please help C:

Answer 1

The various domains of numbers:

 

The natural numbers, N, {1, 2, 3, 4, .....}

The whole numbers, W, {0, 1, 2, 3, 4, .....}

The integers, Z, {..... -4, -3, -2, -1, 0, 1, 2, 3, 4, .....}

Answer 2

Here are a few things to think about...

 

- It's kind of the same as asking what positive numbers are not integers.  In fact, for any positive number you find that isn't an integer, just take the negative of that number and you have a negative number that isn't an integer.

 

- The negative integers are -1, -2, -3, -4, and so on.  As above, these are just the negatives of the positive integers.  So any negative number you choose that isn't one of those is an answer to your question.

 

So here are the numbers that answer your question:

 

- Any negative fraction (rational number) that doesn't equate to an integer -- such as -1/2, -5/4, -293/141, etc.  But -4/2 IS an integer because it is equal to -2.

 

- Any negative irrational number is NOT an integer -- such as -√2, -π, etc.