Ancient egyptians did not write the fraction 4/5 as 4/5. instead they used unit fractions. the numerator of a unit fraction is always 1.no denominator used to represent a given fraction can be repeated. for this reason, egyptians would have written 4/5 as 1/2 + 1/5 + 1/10 and not as 1/2 + 1/10 + 1/10 + 1/10. write each of the following as a sum of unit fractions.