This math topic practices the skill of comparing fractions by simplifying problems where one denominator is changed. It simplifies the process of determining whether fractions are less than, greater than, or equal to each other. The problems involve setting up the fractions in a way that the denominators are the same, making the comparison straightforward. Each question presents a different set of fractions to compare, enhancing the ability to work with basic fraction manipulation and equivalence within a series of problems focused on fraction comparison basics.