A lamppost has half its length in mud and one-third in water. If 313 m of the lamppost is above water, what is the total length (in m) of the lamppost?

If the fractions 113, 35, 79, 57, and 911 are arranged in ascending order, which fraction lies in the middle?

On being asked to find 89 of a certain fraction, a student made the mistake of dividing the fraction by 89 and obtained an answer that exceeded the correct answer by 29. What is the original fraction?