Adding and Subtracting Fractions with Unlike Denominators

Math Songs by NUMBEROCK

This engaging animated music video teaches students the step-by-step process of adding and subtracting fractions with unlike denominators. Through a catchy hip-hop song set in "Tomorrow's Pizzeria," the video introduces key concepts such as finding the Least Common Multiple (LCM), creating equivalent fractions, and simplifying the final answer. The visual narrative uses pizza slices to represent fractional parts, making abstract numerical concepts concrete and relatable. The content specifically focuses on the procedural algorithm for solving fraction problems where denominators do not match. It demonstrates three distinct examples: subtraction (3/6 - 1/4), addition (2/4 + 1/5), and another subtraction problem (5/6 - 1/3). For each example, the video explicitly models listing multiples to find the LCM/LCD, converting the fractions, performing the operation on the numerators, and simplifying the result. This video is an excellent classroom resource for introducing or reviewing fraction operations. The musical format helps with memory retention of the steps ("Find the LCM, Make equivalent fractions, Add/Subtract, Simplify"). Teachers can use it to anchor a lesson on finding common denominators, as a remediation tool for struggling students, or as a fun transition activity that reinforces vocabulary like "numerator," "denominator," and "equivalent."