One way to express 4/3 as a sum of fractions is by writing it as a mixed number 11/3 another way to find equivalent fractions by multiplying the numerator and the denominator by the same number. For example, we can multiply 4/3 x 2/2 to get 8/6. We can also write it as the sum of two fractions, such as 2/3+2/3 equals 4/3.