Add 2 Fractions using easy method

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Taught by YourMathGal
  • Currently 4.0/5 Stars.
6676 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Description:

This is an easy way to add 2 fractions that have different denominators. It's best to use when the denominators do not have a common factor. It does not work with mixed numbers.

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

Questions answered by this video:
  • What is a quick easy way to add or subtract fractions?
  • What is a really easy way to get common denominators for two fractions and adding them?
  • How do you add 3/8 + 1/5 using the easy method for adding fractions with unlike denominators?
  • How do you add 5/12 + 3/11 using the easy method for adding fractions with unlike denominators?
  • How do you subtract 8/9 - 3/7 using the easy method for subtracting fractions with unlike denominators?
  • How do you add 3/8 + 1/6 using the easy method?
  • When should you use the easy method to add fractions?
  • How do you add 5/12 + 7/18 using the easy method?
  • Staff Review

    • Currently 4.0/5 Stars.
    This method of adding / subtracting fractions with unlike denominators makes operations with fractions seem much quicker and easier. It requires more simplifying at the end, but it certainly makes getting a common denominator and adding the two fractions very quick and simple. In some cases, however, it makes the numbers so large that it makes the problem even more difficult!