2. By: Dagny Staudt Introduction Lesson Quiz

3.  Subject: Mathematics  Grade: Six  Objective: In this activity, students will use their previous understanding of multiplication and division to divide fractions by fractions (Fulfills this section of Common Core Standards)

4.  Use the button to move to the next page  Use the button to move to the previous page  Use the button to go to the home page

5.  How do you multiply fractions and fractions?  This should be something we already know, so let’s review.  We multiply each number straight across.

6.  A mixed number is a number that consists of an integer and a fraction, such as  An improper fraction is a fraction in which the numerator is greater than the denominator, such as We multiply the denominator by the integer, which gives us 15. We then add the product to the numerator, which gives us 16.

7.  Here is a video that shows us how to use the information from the previous slide to multiply mixed numbers. Here

8.  One of the first steps in dividing fractions is finding the reciprocal of the second fraction  Finding a reciprocal is essentially flipping the fraction, meaning we switch the location of the numerator and denominator  This is because a fraction multiplied by its reciprocal must equal one 12 1

9.  To divide fractions you must take the reciprocal of the second fraction and multiply it by the first  The final step is to simplify

10.  Using all of the information in the past few slides we can divide a mixed number  1) We must find the fraction that comes from the mixed number  2) We must then invert the second fraction and multiply it by the first  3) Simplify  Here is a video that shows us how to do this. Here

11. Congratulations!! You have completed this lesson in dividing fractions! You may now: Take the Quiz Restart the Lesson

12.  What is the correct fraction found from the fraction: 9/4 11/4 11/7

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15.  What is it called when you invert a fraction? Finding a Reciprocal Multiplying the Fractions Dividing the Fractions

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18.  What is one of the first steps in dividing a fraction? Simplify Find the Reciprocal Divide

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21. Congratulations! You have successfully completed the quiz. You should now understand how to divide fractions. Home Page Citations

22.  www.wolframalpha.com www.wolframalpha.com  http://www.youtube.com/watch?v=HQ3EXy W36es&NR=1&feature=endscreen http://www.youtube.com/watch?v=HQ3EXy W36es&NR=1&feature=endscreen  http://www.ehow.com/video_12219793_d ividing-mixed-numbers-using-reciprocal- method.html http://www.ehow.com/video_12219793_d ividing-mixed-numbers-using-reciprocal- method.html  All photos found through Google