Mastering Fractions: Adding and Subtracting with Different Denominators

Mastering Fractions: Adding and Subtracting with Different Denominators

Learning Objective

At the end of the lesson, you will be able to add and subtract fractions with different denominators.

What do you already know about adding and subtracting fractions with different denominators?

Understanding Fractions

Fractions represent parts of a whole. The bottom number of a fraction is the denominator, which represents the total number of equal parts.

Common Denominators

When adding or subtracting fractions, it's easier if they have the same denominator. Find the least common multiple of the denominators.

Adding Fractions

To add fractions with different denominators, first find the least common multiple of the denominators, then add the fractions as normal.

Subtracting Fractions

Subtracting fractions with different denominators follows a similar process to adding, but involves subtracting instead of adding.

Practice Problems

Solve a variety of practice problems involving both addition and subtraction of fractions with different denominators.

Word Problems

Apply the skills learned to solve real-world word problems involving fractions with different denominators.

Review and Assessment

Review the concepts covered and assess understanding through a short quiz or problem-solving activity.

Write down 3 things you learned in this lesson.

Have students enter three things they learned in this lesson. With this they can indicate their own learning efficiency of this lesson.

Write down 2 things you want to know more about.

Here, students enter two things they would like to know more about. This not only increases involvement, but also gives them more ownership.

Ask 1 question about something you haven't quite understood yet.

The students indicate here (in question form) with which part of the material they still have difficulty. For the teacher, this not only provides insight into the extent to which the students understand/master the material, but also a good starting point for the next lesson.