1. Objective - To add and subtract fractions using the least common denominator. Like termsUnlike terms 2 pens3 pens + 5 pens = 2 pens3 rulers + 4 roses8 roses + 12 roses = 5 roses7 daises + 5x2x + 7x = 6x7y + Only like things can be combined ! One-halfTwo-fifths + + = = ?

2. + = + = = or Unlike things can’t be combined. Therefore, change the fractions so that they have a common denominator. Only like things can be combined !

3. Write a numerical expression that describes the model, then evaluate the expression. + + + =

4. Write a numerical expression that describes the model, then evaluate the expression. + + = +

5. Find the lowest common denominator for the given fractions.

6. Add or subtract. + ==

7. + =

8. + +

9. Find the perimeter of the figure below. +

10. Evaluate the expression below if + =