A fraction is made up of two parts: a numerator (the top number) and a denominator (the bottom number). When subtracting fractions, decompose the fractions into smaller equal units and then subtract the numerators.For example, 1/3 can be subtracted from to 3/6 by decomposing 1/3 into 2 smaller equal units of sixths and then the numerators, 2 and 3, can be subtracted from one another, which is 5. 3/6 - 1/3 = 1/6
