at least you can write it as the sum of half of it twice, that is: 2/x = 1/x + 1/x whatever x number you have, for example: 2/5 = 1/5 + 1/5
But then, you can express a fraction in many different ways, for example again: 2/5 = 1/5 + 1/5 = 2/10 + 2/10 = 1/10 + 1/10 + 1/10 + 1/10 so there are an infinite ways of expressing such a fraction.