Adding, Subtracting, Multiplying and Dividing Rational Expressions

Simplify 

• (x+7)/(x-4)

• -3/4

• (x+3)/(x+4)

• (x+3)/(x-4)

Multiply and Simplify

• (n-10)/8n+56

• (n-10)(n+7)/8n+56

• (n-10)/8

• (n+10)/8

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.

To simplify a rational expression, I should

• Eliminate common terms in the numerator and denominator.

• Combine like terms in the numerator and denominator.

• Factor the numerator and denominator and eliminate common factors.

• Find an LCD.

Perform the operation

• A

• B

• C

• D

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 LCD of the following rational expressions

• (x+1)(x-1)

• (x+1)² (x-1)

• (2x+2)