1 / 21

Wednesday, October 26 th 26 th 11 th

Please take out your Math worksheet and complete warm up Did you write down your homework?!?! . Warm Up. Wednesday, October 26 th 26 th 11 th. Find the prime factorization of 91 Find the product of .033 x .02. Corny Joke of the Day. What did the first casket say to the second casket?

sun
Download Presentation

Wednesday, October 26 th 26 th 11 th

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Please take out your Math worksheet and complete warm up Did you write down your homework?!?! Warm Up Wednesday, October 26th26th 11th Find the prime factorization of 91 Find the product of .033 x .02

  2. Corny Joke of the Day What did the first casket say to the second casket? Is that you COFFIN?

  3. Schedule for the Week Remember….. Checkpoint on Friday!

  4. Retest? • 75 and above you will complete a packet • 74 and below you are eligible for a reteach • Monday 10/31 will be the reteach • Wednesday 11/2 will be the retest

  5. Retest Qualifications • All Homework must from unit must be complete before you retake the test • Retest form • Retake packet must be complete before you retake the test

  6. Homework Answers Can you find my mistakes? 4/6 ¾ ½ ¼ 3/9 2/3 3/5 ½ 2/12 ½ ¼ 2/3 4/5 3/6 6/8 2/3 1/3 3/5 ½ 6/12

  7. What did mickey do wrong?

  8. Fractions +, -, x, and ÷ Unit #2

  9. Todays Mission Adding and subtracting with unlike denominators

  10. How do we add when we don’t have common denominators?!?

  11. Make EQUIVALENT Fractions!!!

  12. To add or subtract unlike fractions, first rewrite them as equivalent fractions with a common denominator. Remember! Fractions that represent the same value are equivalent.

  13. How do we do this? • You can use any common denominator. But it will be easier to find the least common denominator to add and subtract unlike fractions. • The least common denominator (LCD) is the least common multiple of the denominators.

  14. Practicing Equivalent Fractions Make equivalent Fractions by finding the LCD 1. ½ and 1/8 2. 1/3 and 7/9 3. 5/10 and 9/12 4. 6/7 and ¾

  15. Practicing Equivalent Fractions Make equivalent Fractions by finding the LCD 1. ½ and 1/8 2. 1/3 and 7/9 3. 5/10 and 9/12 4. 6/7 and ¾

  16. Time to + and -!!! Steps for unlike denominators • Find the LCD for the two denominators by looking for LCM • Make equivalent fractions by multiplying both the numerator and denominator by the same number (to get LCD) • Add the numerators, leave your denominator • If needed, simplify

  17. 11 13 9 3 11 22 3 __ __ __ __ __ __ __ 24 12 24 8 8 12 24 Just Watch - Multiples of 12: 12, 24, … Multiples of 8: 8, 16, 24, … The LCD is 24. – Write equivalent fractions with a common denominator. – Subtract.

  18. 4 5 7 1 4 12 1 __ __ __ __ __ __ __ 21 7 21 3 3 7 21 Let’s Try Together! - Multiples of 7: 7, 14, 21, … – Multiples of 3: 3, 6, 9, 12, 15, 18, 21, …The LCD is 21. – Write equivalent fractions. Subtract.

  19. 1 1 3 5 1 1 1 7 3 5 13 1 1 1 3 __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ 2 6 4 6 3 12 24 4 8 8 6 24 8 8 12 cup Group Work Add or subtract. Write each answer in simplest form. 1. + 2. – 3. – 4. + 5. Bonnie is making oatmeal bars and the recipes calls for cup of brown sugar. If she has cup of brown sugar, how much more does she need?

  20. Summary Make up 2 truths and 1 lie about fractions Put the three statements on the front Put the lie on the back of the card

  21. Homework Workbook Page 35 Section 5-2 + and – with unlike denominators *Remember to show your work 

More Related