Operations with Rational Expressions

I will use keep/change/flip when...

• Adding rational expressions

• Subtracting rational expressions

• Multiplying rational expressions

• Dividing 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.

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.

Tags

CCSS.HSA.APR.D.6

When adding and subtracting, I should ___________ combine like terms in the denominator.

• Always
• Sometimes
• Never
• I'm Not Sure.

Tags

CCSS.HSA.APR.D.7

Perform the operation

• A
• B
• C
• D

Tags

CCSS.HSA.APR.D.6

Perform the operation

• A
• B
• C
• D

Tags

CCSS.HSA.APR.D.6

Perform the operation

• A
• B
• C
• D

Tags

CCSS.HSA.APR.D.7

Perform the operation

• A
• B
• C
• D

Tags

CCSS.HSA.APR.D.7

What are the excluded values?

• EV: 2, 4

• EV: 2, -4

• EV: -2, -4

• EV: -2, 4

What is the domain of this expression?

• (-inf, 1) u ( 1, 2) u (2, inf)

• (-inf, -2) u ( -2, -1) u
  (-1, inf)

• (-inf, 2) u ( 2, 3) u (3, inf)

• (-inf, inf)