Adding and Subtracting Fractions in Word Problems
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Objective
I can solve word problems that involve adding and subtracting fractions with unlike denominators.
Part 1 of 4
Warm-up video
Khan Academy · 4:41Vetted 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 4
Key concepts
3 concepts
- 1
Shelagh is 15 and 1/2 years old, and Luana is 7 and 7/12 years old.
- 2
To subtract mixed numbers, you can convert them to improper fractions and find a common denominator.
- 3
The difference in Shelagh and Luana's ages is 7 and 11/12 years.
Part 3 of 4
Practice
12 questions
What is the first step in solving a word problem that involves adding or subtracting fractions with unlike denominators?
Why is it important to have a common denominator when adding or subtracting fractions?
Part 4 of 4
Exit ticket
Quick comprehension check
“David has 2 and ⅗ of a pizza. He eats ⅞ of the pizza. How much pizza does David have left? Write the answer as a simplified mixed number.”
Sample answer included in the free materials
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