Adding and subtracting fractions

Explore Adding and subtracting fractions.

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Te reo Māori terms

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Learning objective overview

Master Teaching Guide coverage for this objective.

Resources

  • Alpha textbook: Same denominator, Ex 7.06, pg 111
  • Alpha textbook: Different denominators, PSC 7B, pgs 114 & 115
  • Alpha textbook: Contextual Questions, Ex 7.09, pgs 115 & 116
  • Alpha textbook: Check Your Understanding, pgs 116 & 117

Terminology

  • Lowest common multiple
  • Common denominator
  • Equivalent fractions

Task goals

  • Add and subtract fractions that already share a common denominator.
  • Find the lowest common multiple of two denominators and use it to write equivalent fractions with a common denominator.
  • Add and subtract fractions with different denominators by first converting them to a common denominator.
  • Solve contextual word problems that require adding or subtracting fractions.

Key skills

  • Add fractions
  • Subtract fractions
  • Common denominator

Quick stats

  • 81 total questions
  • 3 difficulty levels
  • Answers included