Adding and Subtracting Fractions
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Objective
I can add and subtract fractions with unlike denominators.
Part 1 of 4
Warm-up video
Professor Dave Explains · 4:07Vetted channel
We don't generate video — this one is by Professor Dave Explains 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 4
Key concepts
3 concepts
- 1
When adding fractions with the same denominator, we only add the numerators and the denominator stays the same.
- 2
To add fractions with different denominators, we must first find the least common multiple of the denominators.
- 3
Subtracting fractions is similar to addition, but instead of adding the numerators, we subtract them.
Part 3 of 4
Practice
10 questions
What must be true about the denominators of two fractions before you can add them?
When adding fractions with a common denominator, do you add the denominators as well as the numerators? Explain why or why not.
Part 4 of 4
Exit ticket
Quick comprehension check
“Solve: ⅗ - ¼. Show all steps.”
Sample answer included in the free materials
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