Adding, Subtracting, Multiplying, and Dividing Rational Expressions

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.

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

• 10

• 5

• 15

• 20

Find the LCD of the following rational expressions

2x/(x+1) and (x²-1)

• (x+1)(x-1)

• (x+1)² (x-1)

• (2x+2)

Find the product

• A

• B

• C

• D

Multiply the Rational Expression

• A.

• B.

• C.

• D.

Multiply the Rational Expression

• A

• B

• C

• D

Multiply the Rational Expression

• A

• B

• C

• D

Divide the Rational Expression

• A

• B

• C

• D

Divide the Rational Expression

• A

• B

• C

• D