1. Learning Target:Students will learn how to compute differences of mixed numbers by renaming.

2. Write the value 2 ¾ in as many different ways as possible?

3. Key ConceptsSubtracting Mixed Numbers by Renaming:1. Rewrite the fraction using the LCD if necessary.2. Rename the fraction if necessary.3. Subtract the whole numbers. Subtract the fractions4. Reduce/simplify if possible.

4. http://www.algebra-online.com/tutorials-2/subtracting-mixed-numbers-remaining-1-gifs/pic3.gif

5. http://www.math.com/school/subject1/images/S1U4L6ex.gif

6. http://www.homeschoolmath.net/teaching/f/images/subtract-columns1.gif

7. http://www.homeschoolmath.net/teaching/f/images/subtract-columns2.gif

8. Find the difference.3 ¼ - 1 5/64 – 2 1/8

9. Find the difference.3 ¼ - 1 5/6 = 1 5/124 – 2 1/8 = 1 7/8

10. Practice Problems:http://www.algebra-cheat.com/articles_imgs/5514/subtra23.jpg

11. Practice ProblemsAnswers:2. 5/94. 7 1/67. 1 3/88. 6 1/2

12. Two brothers are 5 ½ feet and 4 ¾ feet tall. Find their difference in height.

13. Two brothers are 5 ½ feet and 4 ¾ feet tall. Find their difference in height.¾ ft

14. Can you compute differences of mixed numbers by renaming?