Subtracting Mixed Numbers
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Objective
I can subtract mixed numbers with like denominators and express the difference in simplest form.
Part 1 of 4
Warm-up video
mathantics · 9:13Vetted 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
When subtracting mixed numbers, it is important to subtract the entire mixed number, including both the whole number and the fraction part.
- 2
When subtracting mixed numbers in stacked form, if the top fraction is smaller than the bottom fraction, you need to borrow or re-group from the whole number.
- 3
When borrowing, you can change the whole number into a sum and then convert 1 into a whole fraction to add to the existing fraction part.
Part 3 of 4
Practice
3 questions
What is the first step in subtracting mixed numbers when the fraction part of the first mixed number is smaller than the fraction part of the second mixed number?
Solve the following problem and express the answer in simplest form: 8 5/7 - 3 2/7
Part 4 of 4
Exit ticket
Quick comprehension check
“Solve: 9 ⁵⁄₇ - 3 ¹⁄₇. Ensure your answer is expressed in simplest form.”
Sample answer included in the free materials
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