This math topic focuses on simplifying radical expressions involving the division of two terms each containing a combination of two square roots, and rewriting them as a single fraction. The expressions covered in the exercises typically involve simplifying square roots and common factors in both the numerator and denominator. Each problem is structured as a multiple-choice question, requiring students to select the correct simplified form of the given radical expression from several options. The problems are a part of a broader unit on simplifying radicals, aiming to enhance students' skills in handling and simplifying expressions containing square roots.