Adding Rational Expressions Like Denominators

Divide and Simplify

• A

• B

• C

• D

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.

Find the LCD of the following rational numbers

5/4 and 2/3

• 12

• 5

• 24

• 7

Find the LCD of the following rational numbers
2/5 and 3/10

• 10

• 5

• 15

• 20

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Add

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Perform the operation

• A

• B

• C

• D

Add

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• k = 7
• x = 7.1
• x = 7.6
• x = 1/7