This math topic focuses on building skills in identifying equivalent fractions using visual aids of rectangles. The tasks involve observing rectangles with certain portions unshaded, and the students must determine the missing numerator that makes the fractions equivalent. Each question provides a different scenario, reinforcing the understanding of how varied numerators can contribute to equivalent fractions in a visual context. This type of problem enhances the students' abilities to interpret and analyze fractional representations graphically, key for understanding equivalence in fractions.