Fractions with Common Denominators
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Objective
I can identify and compare fractions with common denominators.
Part 1 of 4
Warm-up video
mathantics · 5:07Vetted channel
We don't generate video — this one is by mathantics 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
To add or subtract fractions with different bottom numbers, you must first change them into fractions with a common denominator.
- 2
One way to find a common denominator is to multiply the two different bottom numbers; then, multiply each fraction by a 'whole fraction' made from the opposite denominator.
- 3
After changing to 'like' fractions, add or subtract the top numbers and keep the bottom number the same.
Part 3 of 4
Practice
3 questions
What are 'like' fractions?
Explain how to find a common denominator for two fractions with different denominators using the 'easiest common denominator' method.
Part 4 of 4
Exit ticket
Quick comprehension check
“Which fraction is bigger: 2/7 or 3/7?”
Sample answer included in the free materials
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