Rational Expressions - College Algebra
Card 1 of 68
Rationalize the following fraction:

Rationalize the following fraction:
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Rationalize the following fraction:

To rationalize a denominator, we will multiply the top and bottom of the fraction by the denominator.

And we have our answer
Rationalize the following fraction:
To rationalize a denominator, we will multiply the top and bottom of the fraction by the denominator.
And we have our answer
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Simplify the given expression:

Simplify the given expression:
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First we want to factor both the numerator and denominator:

For the numerator, we can use the quadratic formula:



For the denominator, we only need to factor out the
, leaving us with the given factored expression:

Then we cancel out like terms, giving us a simplified expression:

First we want to factor both the numerator and denominator:
For the numerator, we can use the quadratic formula:
For the denominator, we only need to factor out the , leaving us with the given factored expression:
Then we cancel out like terms, giving us a simplified expression:
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Simplify the following:

Simplify the following:
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First we need to factor both polynomials.

Becomes

Now we cancel out any variables that are in BOTH the numerator and denominator. Remember that if a group of variables/numbers are inside parenthesis, they are considered a single term.
The common term in this case is
, removing that from the equation gives us

First we need to factor both polynomials.
Becomes
Now we cancel out any variables that are in BOTH the numerator and denominator. Remember that if a group of variables/numbers are inside parenthesis, they are considered a single term.
The common term in this case is , removing that from the equation gives us
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Simplify the following

Simplify the following
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The first step is to factor both polynomials:
Becomes 
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is 
Once we remove that, we are left with:

The first step is to factor both polynomials:
Becomes
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is
Once we remove that, we are left with:
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Simplify the following:

Simplify the following:
Tap to reveal answer
The first step is to factor both polynomials
becomes 
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is 
Simplified, the equation is:

The first step is to factor both polynomials
becomes
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is
Simplified, the equation is:
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Simplify the following:

Simplify the following:
Tap to reveal answer
The first step is to factor both polynomials
becomes 
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is 
Simplified, the equation is:

The first step is to factor both polynomials
becomes
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is
Simplified, the equation is:
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Simplify the following:

Simplify the following:
Tap to reveal answer
The first step is to factor both polynomials
becomes 
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is 
Simplified, the equation is:

The first step is to factor both polynomials
becomes
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is
Simplified, the equation is:
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Simplify the following:

Simplify the following:
Tap to reveal answer
The first step is to factor both polynomials
becomes 
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is 
Simplified, the equation is:

The first step is to factor both polynomials
becomes
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is
Simplified, the equation is:
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Simplify the following:

Simplify the following:
Tap to reveal answer
The first step is to factor both polynomials
becomes 
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is 
Simplified, the equation is:

The first step is to factor both polynomials
becomes
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is
Simplified, the equation is:
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Simplify the following:

Simplify the following:
Tap to reveal answer
The first step is to factor both polynomials
becomes 
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is 
Simplified, the equation is:

The first step is to factor both polynomials
becomes
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is
Simplified, the equation is:
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Simplify the following:

Simplify the following:
Tap to reveal answer
The first step is to factor both polynomials
becomes 
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is 
Simplified, the equation is:

The first step is to factor both polynomials
becomes
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is
Simplified, the equation is:
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Simplify the following:

Simplify the following:
Tap to reveal answer
The first step is to factor both polynomials
becomes 
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is 
Simplified, the equation is:

The first step is to factor both polynomials
becomes
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is
Simplified, the equation is:
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Simplify the following:

Simplify the following:
Tap to reveal answer
The first step is to factor both polynomials
becomes 
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is 
Simplified, the equation is:

The first step is to factor both polynomials
becomes
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is
Simplified, the equation is:
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Simplify the following:

Simplify the following:
Tap to reveal answer
The first step is to factor both polynomials
becomes
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is 
Simplified, the equation is:

The first step is to factor both polynomials
becomes
Now we cancel out any terms that are in both the numerator and denominator. Remember that any variables/numbers that are in parenthesis are considered a single term.
In this case, the common term is
Simplified, the equation is:
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Simplify: 
Simplify:
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Factor an
in the denominator.

Cancel the common
in the numerator and denominator.
The answer is: 
Factor an in the denominator.
Cancel the common in the numerator and denominator.
The answer is:
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Add: 
Add:
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To add the terms of the numerator, we will need to have the same denominator.
Multiply both denominators together.

Multiply the numerators with what was multiplied on the denominator.

Combine like terms.
The answer is: 
To add the terms of the numerator, we will need to have the same denominator.
Multiply both denominators together.
Multiply the numerators with what was multiplied on the denominator.
Combine like terms.
The answer is:
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Add/Subtract: 

Add/Subtract:
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Step 1: Find the Least Common denominator of all the fractions..
LCD=
Step 2: Convert all fractions to denominator
.



Step 3: Re-write all fractions in terms of the original equation...

Answer:
or 
Step 1: Find the Least Common denominator of all the fractions..
LCD=
Step 2: Convert all fractions to denominator .
Step 3: Re-write all fractions in terms of the original equation...
Answer: or
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Rationalize the following fraction:

Rationalize the following fraction:
Tap to reveal answer
Rationalize the following fraction:

To rationalize a denominator, we will multiply the top and bottom of the fraction by the denominator.

And we have our answer
Rationalize the following fraction:
To rationalize a denominator, we will multiply the top and bottom of the fraction by the denominator.
And we have our answer
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Simplify the given expression:

Simplify the given expression:
Tap to reveal answer
First we want to factor both the numerator and denominator:

For the numerator, we can use the quadratic formula:



For the denominator, we only need to factor out the
, leaving us with the given factored expression:

Then we cancel out like terms, giving us a simplified expression:

First we want to factor both the numerator and denominator:
For the numerator, we can use the quadratic formula:
For the denominator, we only need to factor out the , leaving us with the given factored expression:
Then we cancel out like terms, giving us a simplified expression:
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Simplify the following:

Simplify the following:
Tap to reveal answer
First we need to factor both polynomials.

Becomes

Now we cancel out any variables that are in BOTH the numerator and denominator. Remember that if a group of variables/numbers are inside parenthesis, they are considered a single term.
The common term in this case is
, removing that from the equation gives us

First we need to factor both polynomials.
Becomes
Now we cancel out any variables that are in BOTH the numerator and denominator. Remember that if a group of variables/numbers are inside parenthesis, they are considered a single term.
The common term in this case is , removing that from the equation gives us
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