Funny I just answered the same exact question just a minute ago, but anyway the area formula is A=L*W, so that means that you need to multiply 2/5 times 1/3 to get the area. Once you do that it wants you to put it in the simplest form, which only means to reduce it down, unless it doesn't need too. Like if I got 10/20, the simplest form would be 1/2, because 10/20 is the same as 1/2, just reduced down. Apply the same logic to your problem and you will get your answer