.40

It is indeed .40, or just 0.4.

For reference, if you ever needed to know how to convert from fractions to decimals for other decimals, follow this procedure:

__1.) Multiply/Divide both the numerator and denominator by a number such that the denominator will equal to 100.__

So for 2/5, we can identify that 5 is the denominator. In order to find out what number we need to multiply to 5, we can divide 100 by 5, which will give 20.

So, 2/5 = (2 * 20)/(5 * 20) = 40/100.

__2.) Completely ignore the denominator.__

It might sound silly, but just pretend the 100 isn't there. For now. You'll see why in just a second.

__3.) Move the decimal point of the number TWO PLACES to the LEFT.__

So the decimal point in 40 is right after the zero. Moving it two places to the left will bring the decimal point right before the 4, **making the answer 0.4.**