Brian McLogan
What you need to know | Rational Functions
In this video I present a set of problems to help prepare for learning about rational functions in precalculus. While rational functions is explored in Algebra 2 I decided to make it a separate unit in precalc based on how many students...
Brian McLogan
Learn to solve a rational equation by multiplying by the LCD
👉 Learn how to solve rational equations. A rational expression is an expression in the form of a fraction where the numerator and/or the denominator are/is an algebraic expression. There are many ways to solve rational equations, one of...
Brian McLogan
Solving a Rational Equation
👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...
Khan Academy
Solving Rational Equations 2, Polynomial and Rational Functions, Algebra II
This video focuses on rational expressions and completes Sal's lecture series on working with and solving this particular type of equation. Its length would be ideal for a computer lab visit or homework assignment (in conjunction with a...
Khan Academy
Solving Rational Equations
Sal shows viewers how to solve rational expressions in this video, which would be an excellent resource for your lecture (or review session) in an algebra class. Those who have a hard time with rational expressions and those who have...
Flipped Math
Solve Rational Equations
It's entirely rational to solve rational equations. Pupils watch a video to learn about solving rational equations in the fourth of five episodes in the Algebra II - Rational Expressions unit. They consider two different methods:...
Flipped Math
Literal Equations
All the variables make it look harder. Individuals find out that solving a formula for a variable on interest is no different than solving an equation. Pupils participate during the video presentation by pausing the video and working...
Flipped Math
Rational Equations
Take a rational look at solving equations. Learners watch a video presentation on solving simple rational equations that shows solving the equation along with finding excluded values. Viewers then practice the skill with the worksheets...
Corbett Maths
Equations – Cross Multiplication
Mastering the art of solving a proportion is not only important for algebra, but it's crucial to geometry and statistics as well. A quick video demonstrates the use of cross multiplication to solve a proportion. The lesson includes...
Corbett Maths
Equations Involving Algebraic Fractions (Advanced)
Everyone seems to freeze when they see a fraction! Give your classes a lesson to watch and rewatch until they are comfortable with the process of solving rational equations. A video presenter demonstrates solving two rational equations....
Krista King Math
Inverse Variation
Apply rational functions to a problem-solving situation through inverse variation. The video tutorial explains the concept of inverse variation and introduces learners to the formula. The instructor explains how to solve problems that...
Northeast Arkansas Education Cooperative
Recognizing When a Rational Expression is Undefined
It only takes the denominator to be zero to make an expression undefined. A video resource makes the connection of undefined fractions to rational expressions. It points out that to determine when a rational expression is...
Curated OER
How Do You Solve a Two-Step Equation by Multiplying by a Reciprocal?
Got a fraction in your equation? Don't like that fraction? Just multiply both sides by the reciprocal of that fraction to get rid of it. Now you can solve the problem using the steps necessary to isolate your variable. Don't forget to...
Curated OER
How Do You Solve a Word Problem with a Rational Equation?
Translate a word problem into a rational equation. This word problem might cause some to pause and ponder, and some to just give up and skip the problem altogether. It does involve some fractions, so watch this video and get a better...
Curated OER
What's a Rational Equation?
What is a rational expression? Is it something to do with numerators, denominators, and polynomials? What things make up a rational equation? Watch this video as the teacher explains what makes a rational equation.
Curated OER
Holes in Rational Equations
When you have a hole in a graph it means that both the numerator and denominator equaled 0 in an equation. So what does that mean? Learners can brush up on this graphing concept and feel OK when they realize a hole in a graph is just a...
Curated OER
How Do You Solve a Rational Equation by LCD Multiplication?
Use the least common denominator to solve rational equations with variables in the denominators of algebraic fractions. Learners can watch this video to find out how to do just this! An instructor solves 2 problems by finding the least...
Curated OER
How Do You Solve a Rational Equation by Adding Fractions?
A comprehensive video, this resource explains how to solve an equation when you have a variable in the denominator. The lecturer works through 2 different problems that represent 2 situations. From this video, pupils can gain knowledge...
FuseSchool
Solving Algebraic Fractions
Equations with algebraic fractions still require the LCD. Pupils learn to solve equations with algebraic fractions. Multiplying through by a common denominator gives a simpler equation that they can solve.
Krista King Math
Abstract Fractional Equations
Viewers of this short video examine abstract equations with fractional expressions and learn to find a least common multiple to eliminate denominators. They then see how to manipulate the equation to isolate the variable of interest.
Curated OER
How Do You Solve a Rational Equation?
There are a lot of steps in this problem. But just like walking up a flight of stairs, you should take one step at a time, so too in the solving of this problem. The instructor explains each step and what to do to move to the next one.
Khan Academy
Khan Academy: Algebra 2: Solving Rational Equations 1
A step-by-step breakdown on how to solve a rational equation with constraints. [4:12]
Khan Academy
Khan Academy: Algebra: Solving Rational Equations 3
A step-by-step breakdown on how to solve a rational equation with constraints with more than one solution. [4:32]
Khan Academy
Khan Academy: Algebra: Rational Equations
A step-by-step breakdown to solve a rational equations and find the excluded values. [4:16]