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Examples of Slope-intercept Equations
00:18

Examples of Slope-intercept Equations

Some examples of linear equations in slope-intercept form.

Practical Problem: Finding Volume
02:28

Practical Problem: Finding Volume

A practical problem about volume is solved using division of a rational expression.

Fractions, Decimals, and Percents
28:39

Fractions, Decimals, and Percents

Both business people and consumers must learn to work with fractions, decimals and percents in addition, subtraction, multiplication and division.

Introducing Fractions: Fractions, the Number Line, and Measurement
05:58

Introducing Fractions: Fractions, the Number Line, and Measurement

This clip explains that, just as every whole number has its place on the number line, so does every fraction. The clip then talks about how to divide the number line into sections that correspond to fractions. The clip also talks about the use of fr...

Introducing Fractions: Fractions and Denominators
01:59

Introducing Fractions: Fractions and Denominators

This clip explains that we can think of any whole number as a fraction with a denominator of 1, and any fraction with a denominator of 1 as a whole number. The clip also explains that we can't have fractions with a denominator of 0.

Dividing Fractions: Why Does Invert and Multiply Work?
07:40

Dividing Fractions: Why Does Invert and Multiply Work?

This clip takes the viewer on what it calls a "reason-by-reason, step-by-step...side trip" into why the "invert and multiply" rule works. The clip states that it's not absolutely necessary to take this side trip, and that "…as long as you remember ...

Changing Fractions to Decimals: Changing Fractions to Decimals
06:54

Changing Fractions to Decimals: Changing Fractions to Decimals

This clip explains that changing fractions to decimals is quite different from changing decimals to fractions. It takes us through the process of dividing the numerator by the denominator and asks the question: "How accurate do we want the answer? D...

Additive and Multiplicative Inverses
02:07

Additive and Multiplicative Inverses

Every number except zero has a multiplicative inverse. An explanation of multiplicative inverses and their usefulness in solving algebraic equations.

Additive Inverses
00:38

Additive Inverses

An explanation of how to solve an algebraic equation by multiplying.

Adding Fractions With the Same Denominator: Changing Improper Fractions to Mixed Numbers
03:38

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.