Lowest Common Multiple through the Grades

This Lowest Common Multiple through the Grades lesson plan also includes:

The LCM will be your new BFF. Learners review least common multiple and least common denominator applications, mostly on fractions, from middle school. Scholars then see how the LCM can be applied to various types of problems from Algebra I and II, such as adding rational expressions and clearing the denominator to simplify complex fractions.

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CCSS: Designed
Instructional Ideas

  • Use parts of the lesson to reinforce concepts
Classroom Considerations

  • Note that lowest common multiple is often referred to as least common multiple
  • Also note that the lesson uses the bubble method for finding LCM, which may be unfamiliar to some learners

  • Includes answer key for easier grading
  • Learners can see how they can apply a mathematical concept to different situations

  • Does not include a worksheet