Search for tag: "denominator"

Rationalizing a denominator: Square root of a fraction

This discusses what rationals and irratioinals are, then goes on to demonstrate how to eliminate any radical number in the denominator.

From  Tom Grant 7 plays 0  

Rationalizing a denominator: Square root of a fraction

This video shows how to multiplly the top and bottom of a square root of a fraction to get the result of a rational number in the denominator.

From  Tom Grant 10 plays 0  

Rational exponents: Products and quotients with negative exponents

Shows how to manipulate fractional exponents in variou sways

From  Tom Grant 8 plays 0  

Solving for a variable in terms of other variables in a ratioinal equation: Problem type 3

This one demonstrates how to eliminate the rational parts of the equation as usual, then gather the terms with the chosen variable on one side of the equal sign so that it can be factored to one…

From  Tom Grant 16 plays 0  

Solving for a variable in terms of other variables in a rational equation: Problem type 1

Demonstrates how to rearrange a proportion to isolate a chosen variable. Note that none of the variables are elliminated, simply moved to new positions.

From  Tom Grant 9 plays 0  

Solving a rational equation that simplifies to linear: Factorable quadratic denominators

Demonstrates using factoring skills to separate and identify all of the necessary factors that make the LCD (Least common denominator) that can be used as a multiplier through a rational equation to…

From  Tom Grant 10 plays 0  

Solving a ratioinal equation that simplifies to linear: Unlike binomial denominators

Shows how to find a common denominator to use as a multiplier for each term in a rational equation (an equation with fractions) to then eliminate the denotminators and the result will be a more…

From  Tom Grant 10 plays 0  

Solving a rational equation that simplifies to linear: Like binomial denominators

This has two examples so that you can learn to watch out for what looks like a solution but is not because it creates division by zero if you check the answer in the original equation. The other…

From  Tom Grant 9 plays 0  

Complex fraction with negative exponents: Problem type 2

This demonstrates how to convert negative exponents in a complex fraction to the reciprocal positive exponents and then use the LCD of all fractions to simplify.

From  Tom Grant 9 plays 0  

Solving a rational equation that simplifies to linear: Denominators a, x, or ax

Demonstrates multiplying each term in a rational equation by the least common denominator of all fractions so that the denominators can be eliminated and the resulting linear equation can then be…

From  Tom Grant 17 plays 0  

Solving a rational equation that simplifies to linear: Denominator x + a

Shows cross multipication of two single fractions set equat to each other to create a new equation that has no fractions and is then solvable by the typical methods.

From  Tom Grant 14 plays 0  

Complex fraction without variables: Problem type 2

Shows how to simplify a large fractions with fractioins embedded in it. The simplest way involves multiplying all small fractions by their least common denominator so the individual denominators…

From  Tom Grant 7 plays 0  

Adding rational expressions with multivariate monomial denominators: Advanced

Shows how to use the given factors of two different denominators and find the LCD then adjust the fractions so they can be added

From  Tom Grant 8 plays 0  

Adding rational expressions with denominators ax - b and b - ax

Describes how to deal with denominators that are simply opposite in sign when adding or subtracting fractional expressions.

From  Tom Grant 9 plays 0  

Adding rational expressions with denominators ax and bx: Basic

Demonstrates how to adjuxt fractional algebra so that the fractions can be added together

From  Tom Grant 9 plays 0  

Finding the LCD of rational expressions with quadratic denominators

Factoring quadratics to find the LCD of two fractions in algebra

From  Tom Grant 14 plays 0