Adding Fractions

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Taught by mrbrianmclogan
  • Currently 4.0/5 Stars.
5970 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson, you will learn how to add fractions with the same or different denominators. The key is finding a common denominator and adding the numerators while keeping the denominator the same. If the fractions have different denominators, you will need to find the lowest common denominator (LCD) by listing out the multiples and then converting the fractions to have the same denominator before adding them together. The result may be an improper fraction, which can be converted to a mixed number.

Lesson Description:

Adding fractions that have the same or different denominators

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Questions answered by this video:
  • How do you add fractions?
  • How do you add fractions if they don't have a common denominator?
  • How do you get a common denominator?
  • How do you add 2/5 + 1/5?
  • How do you add -4/5 + (-1/3)?
  • What is the lowest common denominator (LCD) and how do you find it?
  • What is in improper fraction?
  • How do you change an improper fraction to a mixed number?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson shows one simple example of adding fractions with the same denominator and one example where two fractions have different denominators. All steps involved in adding the fractions are explained.