Adding and Subtracting Rational Functions with Different Denominators

Find the LCD of the following rational numbers

• 10

• 5

• 15

• 20

• A
• B
• C

• A
• B
• C

• A
• B
• C

• A
• B
• C

• A
• B
• C

• A
• B
• C

Perform the operation

• A

• B

• C

• D

• k = 7
• x = 7.1
• x = 7.6
• x = 1/7

Perform the operation

• A

• B

• C

• D