Add or Subtract Rational Expression

• 
• 
• 
• 

Simplify the expression.

• 
• 
• 
• 

Simplify the expression.

• 
• 
• 
• 

3/8 + 2/8

• 5/8

• 1/8

• 5/16

6/12 - 3/12

• 9/12

• 3/12

• 8/12

Add the fractions

• a

• b

• c

• d

Add

• A.

• B.

• C.

• D.

Subtract the fractions

• a

• b

• c

• d

How can you tell when a rational expression is in simplest form?

• When you do not need a common denominator to add/subtract.

• When the numerator and denominator are in factored form.

• When there are no restrictions on the variables.

• The numerator and denominator have no common factors.

When adding or subtracting rational expression with the same denominator...

• Add or subtract the denominators

• Add or subtract the numerators

• Add or subtract both denominator and numerator