Multiplying Fractions: Multiplying Fractions With Numerators Other Than One
This clip explains what it calls the basic rule for multiplying fractions, which works for any number of fractions. The clip says to multiply all the numerators to get the numerator of the answer, and to do the same with all the denominators. The pr...
Subtracting Fractions: Two Problems: Take-Away and Missing Addend
This clip explains that we subtract fractions in at least two kind of problems: take-away and missing addend. It then provides an example of each, along with instructions on how to solve them. In the take-away problem given, it's necessary to change...
Dividing Fractions: Rule For Dividing Fractions, A
This clip puts the rule for dividing fractions known as "invert and multiply" to the test. "To divide one fraction by another," the clip states, "multiply the first fraction--the dividend--by the reciprocal of the second fraction--the divisor."
Adding Fractions With the Same Denominator: Changing Improper Fractions to Mixed Numbers
This clip explains the procedure of changing improper fractions to mixed numbers. It also provides a shortcut for this operation: dividing the numerator of the improper fraction by the denominator.
Adding Fractions With the Same Denominator: Adding Mixed Numbers
This clip explains how to add mixed numbers. One method is to add the whole numbers and the fractions separately and combine the results. Another approach is to convert the mixed numbers to improper fractions, then add as usual, and then change the ...
Adding Fractions With the Same Denominator: Adding More Than Two Fractions
This clip explains that adding more than two fractions with the same denominator is a two-step process. The first step is adding the numerators; the second step is converting the improper fraction that results to a mixed number.
Adding Fractions With the Same Denominator: Changing Mixed Numbers to Improper Fractions
This clip explains that we have to change a mixed number to an improper fraction whenever we want to add, subtract, multiply or divide fractions. The clip then provides a shortcut for changing mixed numbers to improper fractions.
Adding Fractions With the Same Denominator: Summary: Adding Fractions With the Same Denominator
This clip summarizes adding fractions with the same denominator. It explains that the process can involve improper fractions as well as mixed numbers, and the conversion of mixed numbers to improper fractions and vice-versa.
Subtracting Fractions: Subtracting Mixed Numbers
This clip explains that, when subtracting mixed numbers, "Â…the safest thing is to change them both to improper fractions and use the rules for fractions."
Subtracting Fractions: Summary: Subtracting Fractions
This clip summarizes subtracting fractions, explaining that the first step is to express the fractions with a common denominator. The clip also states that we can easily subtract mixed numbers by changing them to improper fractions.