Answer:
The number 10/2 = 5 is an integer.
Step-by-step explanation:
An integer is a whole number which cannot be expressed in fractions. For example, 1, 2, 3...
Integer can be positive, negative of zero.

It is a whole number so it is an integer.
- 0.3
It is not an integer as it has a fractional part.

It also has a fractional part, so it is not an integer.
0.4
It also has a fractional part, so it is not an integer.