Arithmetic of Fractions: Addition
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Lesson Summary:
In this lesson, we learned how to add fractions with the same denominator and how to find the lowest common denominator when the fractions have different denominators. We also learned how to add mixed numbers by changing them to improper fractions and adding them as usual. The procedure for adding fractions with different denominators involves finding the LCD, changing the fractions to have a common denominator, adding the numerators, and simplifying if necessary. By following these steps, students can easily add fractions and mixed numbers.
Lesson Description:
Concepts covered: Addition of Improper and Proper Fractions and also Mixed Numbers.
Questions answered by this video:
- How do you add fractions?
- How do you add improper fractions?
- How do you add mixed numbers?
- How do you find a common denominator?
- Where can I find a bunch of examples of adding fractions?
- How do you change an improper fraction into a mixed number?
- How do you add mixed numbers with a graphing calculator?
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Staff Review
A concept that many students have difficulty with -- adding and subtracting fractions. Learn how to do it using a least common denominator and converting fractions. A MUST watch for anyone having difficulty with fractions -- from middle school through high school (and possibly beyond). Watch several examples of adding and subtracting fractions / mixed numbers. Also, learn how to solve these on a graphing calculator! -
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rednckgirl81
This video was helpful in brushing up on math skills that I have not used in some time.
