Adding and subtracting mixed numbers
Add and subtract mixed numbers with like denominators, including by converting to improper fractions or using properties of operations
Teaching approaches
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1 approach
If a recipe calls for 1 and 2/5 cups of oats and another batch needs 2 and 3/5 cups, can your child add them together to get the total — including converting when the fifths add up past a whole?
Add and subtract mixed numbers with like denominators, including by converting to improper fractions or using properties of operations
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This concept
Check understanding
- Calculate 2 3/5 + 1 4/5 and express as a mixed number
- Subtract 3 1/4 from 5 3/4
- Solve 4 2/6 − 1 5/6 by regrouping the whole number
“If a recipe calls for 1 and 2/5 cups of oats and another batch needs 2 and 3/5 cups, can your child add them together to get the total — including converting when the fifths add up past a whole?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Fractions
- Age range
- Ages 9–10