Four Operation Rational

Eleni withdrew $45 from her savings account.  She then used her debit card to buy groceries for $30.15.  What was the total amount Eleni took out of her account?

• $75.15

• $14.85

• $15.85

• $75

Simplify 

• (x+7)/(x-4)

• -3/4

• (x+3)/(x+4)

• (x+3)/(x-4)

Divide and Simplify

• A

• B

• C

• D

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.

My first step will be to change the operator to multiplication and reciprocate the second fraction when...

• Adding

• Subtracting

• Multiplying

• Dividing

Perform the operation

• A

• B

• C

• D

Perform the operation

• A

• B

• C

• D

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