Mastering Fractions: Adding and Subtracting with Ease

Mastering Fractions: Adding and Subtracting with Ease

Learning Objective

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

What do you already know about fractions?

What Are Fractions?

Fractions represent parts of a whole. They consist of a numerator and a denominator separated by a slash.

Adding Fractions with the Same Denominator

When adding fractions with the same denominator, simply add the numerators and keep the denominator the same.

Subtracting Fractions with the Same Denominator

When subtracting fractions with the same denominator, subtract the numerators and keep the denominator the same.

Adding Fractions with Different Denominators

To add fractions with different denominators, first find a common denominator. Then, adjust the numerators accordingly and add them together.

Subtracting Fractions with Different Denominators

To subtract fractions with different denominators, follow the same steps as adding fractions with different denominators.

Practice: Adding Fractions with the Same Denominator

Solve the following addition problems: 1/4 + 3/4, 2/5 + 1/5, 3/8 + 5/8

Practice: Subtracting Fractions with the Same Denominator

Solve the following subtraction problems: 7/12 - 3/12, 4/9 - 1/9, 5/16 - 3/16

Practice: Adding Fractions with Different Denominators

Solve the following addition problems: 1/3 + 1/6, 2/5 + 1/4, 3/8 + 5/12

Practice: Subtracting Fractions with Different Denominators

Solve the following subtraction problems: 7/12 - 3/8, 4/9 - 1/6, 5/16 - 3/12

Summary and Review

Recap the key concepts learned in this lesson: adding and subtracting fractions with the same denominator and different denominators.

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.