Adding and Subtracting Like Rational Expressions

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

Simplify 

• (x+7)/(x-4)

• -3/4

• (x+3)/(x+4)

• (x+3)/(x-4)

Perform the operation

• A

• B

• C

• D

Find the LCD of the following rational expression

• (x+8)(x-3)

• 8x(x+2)

• (x²+3x+24)

Find the least common denominator of the expression

• 18

• 6x

• 3xy

• 6xy

Add

• A.

• B.

• C.

• D.

• A

• B

• C

• D

• A
• B
• C
• D

• A.

• B.

• C.

• D.