Is it an integer, or not?

-54/6

45/9

-65.72

3/4

36

An integer is a positive or negative whole number.

-54/6 = - 9 ... integer

45/9 = 5 ... integer

-65.72 ... not an integer because it has a decimal ... it is not a whole number

3/4 = 0.75 ... not an integer because it is not a whole number

36 ... integer