Khan Academy
Dividing Mixed Numbers, Fractions, Pre-Algebra
Before Sal can divide a mixed number, he has to rewrite it as an improper fraction. He explains that dividing a fraction is the same as multiplying it by its reciprocal and that you can "cancel out" numbers to make multiplying easier.
Khan Academy
Multiplying Fractions and Whole Numbers: Mixed Number Answer, Pre-Algebra
Here is a great video explaining multiplying a fraction by a whole number. Sal shows students how to put a whole number over 1 to multiply it by a fraction. He simplifies his answer and writes it as a mixed number.
Khan Academy
Adding Mixed Numbers, Fractions, Pre-Algebra
This video will demonstrate adding mixed numbers. Sal explains that adding mixed numbers can be done by looking at the whole number separately from the fraction. Because his explanation is brief, this video would be great as a supplement...
Khan Academy
Dividing Fractions
Here is an example problem that requires Sal to divide by the reciprocal. He demonstrates dividing the fraction and rewriting it as a mixed number. Sal nicely explains why multiplying a fraction is the same as dividing it by its reciprocal.
Khan Academy
Subtracting Mixed Numbers 2, Fractions, Pre-Algebra
To subtract mixed numbers, it may be necessary to find the least common multiple to establish a common denominator. This is just what Sal does in this presentation. First, he shows how to find a common denominator and then the process...
Khan Academy
Mixed Numbers: Changing from an Improper Fraction, Fractions, Pre-Algebra
This video on changing improper fractions to mixed numbers would nicely complement the Khan Academy video on writing mixed numbers as improper fractions. Sal first shows students how to convert improper fractions. Then, he uses drawings...
Curated OER
How Do You Subtract Mixed Fractions with Different Denominators by Regrouping?
Are your young mathematicians having trouble with subtracting mixed fractions? Consider this video to supplement your teaching. An instructor explains step-by-step how to subtract mixed fractions with unlike denominators showing viewers...
Curated OER
How Do You Subtract Mixed Fractions with Different Denominators by Regrouping?
Are your young mathematicians having trouble with subtracting mixed fractions? Consider this video to supplement your teaching. An instructor explains step-by-step how to subtract mixed fractions with unlike denominators, showing viewers...
Curated OER
Converting Improper Fractions to Mixed Numbers
How do you convert an improper fraction? This well thought out short, provides a step-by-step process that is easy to follow. Have your students use the steps shown in the video to teach a peer how they convert an improper fraction into...
Curated OER
Changing Mixed Fractions into Improper Numbers
Bring home a math tutor for your budding math geniuses. Duane explains how to convert a mixed fraction into an improper number. This clip is helpful because he first draws what the mixed fraction represents and how it would look as an...
Curated OER
Changing Improper Fractions into Mixed Numbers
If I have changed a mixed number into an improper fraction, can I change it back again? Of course you can. Watch and learn how to draw or divide to change an improper fraction into a mixed number. Watch along side another video showing...
Curated OER
Adding Fractions
Sometimes watching a person do a math problem is really helpful. Duane works through the process needed to add mixed numbers together. He doesn't fully explain all the steps involved but if your learners need a reminder to help them do...