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In This Unit of Study…

Students add and subtract fractions with unlike denominators, including mixed numbers and fractions greater than one, and they apply these operations to solve real-world problems. Instruction includes the use of estimation, manipulatives, visual models, and the properties of operations. When finding common denominators, students apply their understanding of factors up to 12 and their multiples.

B.E.S.T. Benchmarks:

  • MA.5.FR.2.1 Add and subtract fractions with unlike denominators, including mixed numbers and fractions greater than 1, with procedural reliability.
  • MA.5.AR.1.2 Solve real-world problems involving the addition, subtraction, or multiplication of fractions, including mixed numbers and fractions greater than 1.

Key Concepts:

  • I can add fractions with unlike denominators.
  • I can add mixed numbers and fractions greater than one with unlike denominators.
  • I can subtract fractions with unlike denominators.
  • I can subtract mixed numbers and fractions greater than one with unlike denominators.
  • I can solve real-world problems involving addition of fractions, including mixed numbers and fractions greater than 1.
  • I can solve real-world problems involving subtraction of fractions, including mixed numbers and fractions greater than 1.
  • I can use benchmark fractions and number sense to estimate the sum or difference of fractions.