28/24 = 1 4/24 or 1 1/6
to simplify the answer you divide the denominator into the numerator and get 1 4/24
then reduce 4/24 by dividing the greatest common multiple into the numerator and the denominator to reduce the fraction to the lowest terms so 4/24 = 1/6 when it is divided by 4
So that gives us the final answer of 1 1/6