Which fraction is greater 28 over 81 or 7 over 24?

To compare the fractions 28/81 and 7/24, we need to find a common denominator. In this case, the least common multiple of 81 and 24 is 81. We then convert both fractions to have a denominator of 81: 28/81 = 28/81 and 7/24 = 21/81. Now that both fractions have the same denominator, we can compare the numerators directly. Since 28 is greater than 21, the fraction 28/81 is greater than 7/24.