Adding Fractions

Adding Fractions

Grade 8th Grade · Math · 45 min

What's Included

Learning Objective

I can add fractions with unlike denominators by finding a common denominator.

Warm-Up Video

Khan Academy · 4:02

Adding fractions with unlike denominators introduction

Guided Notes

3 key concepts

  • 1

    To add fractions with unlike denominators, you must first find a common denominator.

  • 2

    The least common multiple of 2 and 3 is 6, so we can express ½ as 3/6 and ⅓ as 2/6.

  • 3

    When adding fractions with a common denominator, add the numerators and keep the same denominator, so 3/6 + 2/6 = 5/6.

Practice Questions

10 questions · Multiple choice & Short answer

Exit Ticket

Quick comprehension check

Solve for ⁵⁄₁₂ + ⅓. Show all steps, including finding the common denominator.

Complete Lesson Package

Get all 3 ready-to-use resources:

Teacher Guide
Student Doc
Slides