Adding Fractions with Unlike Denominators
Free to teach as-is — the teacher guide, student handout, and slides are included.
Free — we'll email you an access link. Google Docs format.
Objective
I can add fractions with different denominators by finding a common denominator and then adding the numerators.
Part 1 of 3
Warm-up video
Khan Academy · 5:39Vetted channel
We don't generate video — this one is by Khan Academy on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 3
Practice
7 questions
What is a common denominator for ½ and ⅓? Explain how you found it.
Convert ¾ to an equivalent fraction with a denominator of 12. Show your work.
Part 3 of 3
Exit ticket
Quick comprehension check
“Calculate ⁷/₁₀ + ¹/₄. Show each step, including finding a common denominator. Determine the sum of ⁵/₆ and ²/₉. Show your work, including finding a common denominator. ”
Sample answer included in the free materials
Get the materials
Teacher guide, student handout, and slides — free, in Google Docs format
Teacher Guide
Complete lesson plan with answer keys and alternate activities
Student Handout
Printable worksheet
Slides
Ready to present
We'll ask for your email to send your access link — nothing else.
Teaching a group at a different level?
Where are your students right now? We'll rebuild this lesson to match — including the teacher guide, student handout, and slides, saved to your Google Drive.
Adapt This Lesson

