Rational Denominator

• A
• B
• C
• D

• 
• 
• 
• 

Simplify by cancelling

• 1

• -1

• Can't be simplified

• A
• B
• C

Simplify the expression.

• 
• 
• 
• 

Simplify the expression.

• 
• 
• 
• 

To add or subtract rational expressions we must have a _____________>

• greatest common factor

• common denominator

• calculator

• proportion

When adding or subtracting rational numbers, what must you have?

• Common Numerator

• Quick Answering Skills

• Common Numbers

• Common Denominators

When adding or subtracting RATIONAL NUMBERS with LIKE DENOMINATOR denominator you should

• multiply the denominators

• add or subtract the numerators

• keep the denominator

• simplify if need

• A
• B
• C