math · Grade 5
Add Fractions by Matching Units
Use common denominators to add and subtract fractions.
Find this activity in the mathematics map
Explore the related learning targets, foundations and possible next connections.
Learning goals
- Use common denominators to add and subtract fractions.
Before you begin
Understand the words and representations introduced in the Explore activity.
Age and grade do not measure readiness. Adjust reading or adult support to preserve the intended learning goal.
Follow the sequence
Complete practice
Practice previewAdd Fractions by Matching Units
Practice · Independent · 25 min
Use common denominators to add and subtract fractions. A complete set with exploration, practice and application. Use the linked unit for the learning sequence and teaching guide.
1. Explore
Practice previewAdd Fractions by Matching Units: Explore and Explain
Explore · Independent · 10 min
Use common denominators to add and subtract fractions. A focused learn activity. Use the linked unit for the learning sequence and teaching guide.
2. Practice
Practice previewAdd Fractions by Matching Units: Practice Independently
Practice · Independent · 10 min
Use common denominators to add and subtract fractions. A focused practice activity. Use the linked unit for the learning sequence and teaching guide.
3. Apply
Practice previewAdd Fractions by Matching Units: Apply and Create
Apply · Independent · 15 min
Use common denominators to add and subtract fractions. A focused apply activity. Use the linked unit for the learning sequence and teaching guide.
Download the unit pack
Numbered activities, separate answer keys and a teaching guide in one ZIP. The pack uses the focused sequence; the complete practice sheet above is an alternative.
Teaching and response guide
- Begin with: Rename 2/3 in sixths.
- Connect the response to: Find 3/4 + 1/8.
- Ask students to apply the idea: A recipe uses 1/2 cup plus 1/3 cup of water. How much altogether?
Watch for: Accepting an answer without checking whether it uses the material and satisfies the requested relationship or criteria.
Check the answer criteria for each task. A supported explanation may have more than one acceptable response. These activities offer evidence to discuss; completing a sheet alone does not establish mastery.