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MathematicsFractionsAges 9–10

Adding and subtracting mixed numbers

Add and subtract mixed numbers with like denominators, including by converting to improper fractions or using properties of operations

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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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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