Answer:
The integers are the numbers such that:
- The distance between consecutive integers is always of 1 unit and the integer numbers only have zeros after the decimal point, such that the set is: Z = {..., 0, 1, 2, 3, 4, ......}
74) No digits after the decimal point, so this is an integer.
3.49) we have digits after the decimal point, so this is not an integer.
4/7) 4 is smaller than 7, so 4/7 is smaller than one and larger than zero,
one and zero are consecutive integer numbers, so 4/7 can not be an integer number.
You also can solve the division and find that the quotient has digits after the decimal point.
148.29) This number has digits after the decimal point, so this is not an integer number.
8/1) here we have 8 divided by one, we know that:
8/1 = 8
8 has no digits after the decimal point, so this is an integer.
