FRACTIONS (RATIONAL EQUATIONS)
- A rational equation is an equation where at least one denominator
contains a variable.
- There is a restriction on the domain. The variable cannot take on any
number that would cause any denominator to be zero.
- The first step in solving a rational equation is to convert the
equation to an equivalent equation without denominators.
- Then set the equation equal to zero and solve.
- Remember that you are trying to isolate the variable.
If you would like an in-depth review of fractions, click on Fractions.
Solve for x in the following equation.
The only way that a fraction can have a value of zero is when the numerator
of the fraction is zero. Since the numerator is 3, there is no way that the
fraction can have a value of zero. Therefore there is no solution.
If you would like to work another example, click on Example
If you would like to test yourself by working some problems similar to this
example, click on Problem
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