2/5 is a fraction and cannot be directly converted into a whole number. Whole numbers are integers like 0, 1, 2, 3, and so on, which do not have fractional or decimal parts.
However, if you want to express 2/5 as a decimal, it is 0.4. This decimal is not a whole number because it has a fractional part.
In summary, 2/5 cannot be represented as a whole number. It is a fraction that equals 0.4 in decimal form.