Adding and Subtracting Fractions | Math Lesson

How do you add or subtract fractions correctly? In this math lesson, students learn that fractions can only be combined when they are written with the same-sized parts, which means having a common denominator. The lesson begins with simple examples like 2/7 + 3/7, where the denominators already match, making it easy to combine the numerators. Students then explore what happens when denominators are different, such as 1/4 + 1/2, and learn how to rewrite fractions using equivalent fractions before adding. Subtraction follows the same process. Students see how to subtract fractions with matching denominators and how to handle more complex problems like 3/4 − 1/3 by finding a common denominator first. The lesson also emphasizes simplifying answers using the greatest common factor when possible, helping students express their results in the clearest form. By the end of the lesson, students understand that adding and subtracting fractions is a structured process: match the denominators, combine the numerators, and simplify the result. Watch now to learn how to confidently add and subtract fractions using common denominators.