Lesson Plan: Subtracting Mixed Numbers

In this final lesson of the Adding and Subtracting Fractions Unit, students will learn how to subtract mixed numbers. This lesson builds on their understanding of mixed numbers and fraction subtraction, helping them develop strategies for subtracting whole numbers and fractions together.

Students will:

• Understand the structure of mixed numbers (whole numbers and fractions)
• Learn how to subtract mixed numbers with like and unlike denominators
• Use the Least Common Denominator (LCD) to rewrite fractions before subtracting
• Convert between mixed numbers and improper fractions when necessary
• Practice borrowing (regrouping) when subtracting mixed numbers
• Apply their knowledge to solve real-world problems involving mixed number subtraction

Designed for grades 3-5, this lesson aligns with Common Core standards and reinforces students’ ability to perform fraction operations with mixed numbers. By mastering this skill, students will be prepared to tackle more advanced fraction concepts in future math learning.

This is the final lesson in the ten-part unit on adding and subtracting fractions. Students can now apply their knowledge to a variety of real-world and mathematical problems involving fractions and mixed numbers.

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