Learn how to add and subtract fractions in this 30-minute pre-algebra video lesson. Master the process of finding common denominators, converting fractions to equivalent forms, and simplifying results. Explore examples with both common and unlike denominators, and practice adding and subtracting multiple fractions. Gain a solid understanding of key concepts such as least common denominator (LCD), least common multiple (LCM), and greatest common factor (GCF) to effectively manipulate fractions in various mathematical scenarios.