Adding and Subtracting Rational Expressions Same Denominators

When adding and subtracting rational expressions, my first step should be to:

• Combine like terms in the numerators.

• Determine a Least Common Denominator.

• Factor all of the numerators and all of the denominators.

• Change the operator to multiplication and reciprocate the second fraction.

Perform the operation

• A

• B

• C

• D

When adding or subtracting rational expression with the same denominator...

• Add or subtract the denominators

• Add or subtract the numerators

• Add or subtract both denominator and numerator

• A.
• B.
• C.
• D.

• A
• B
• C
• D

• k = 7
• x = 7.1
• x = 7.6
• x = 1/7

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Add

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• 
• 
• 

Add

• A.

• B.

• C.

• D.

• A
• B
• C
• D