1 / 21

Comparing & Ordering Fractions

Comparing & Ordering Fractions. To compare fractions you can use the “Butterfly” method or cross multiplication. Use > , < , or =. “Butterfly” method. 9. <. 10. <. Use > , < , or =. “Butterfly” method. 12. 10. >. >.

evers
Download Presentation

Comparing & Ordering Fractions

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. Comparing & Ordering Fractions

  2. To compare fractions you can use the “Butterfly” method or cross multiplication.

  3. Use >, <, or =. “Butterfly” method 9 < 10 <

  4. Use >, <, or =. “Butterfly” method 12 10 > >

  5. To order fractions you use the Least Common Denominator (LCD).

  6. Order the fractions from least to greatest. , ,

  7. One way to compare or order fractions is to express them with the same denominator.

  8. The Least Common Denominator is the same as saying Least Common Multiple of the denominators. LCD = LCM

  9. Use LCD Step 1: Find the LCM of the denominators

  10. Find the LCD: 6, 12, 18, 24, 30, 36, 42, 48… 12, 24, 36, 48 … 9, 18, 27, 36, 45 … 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36 … LCD = 36

  11. Step 2: Write equivalent fractions. x 6 6 21 x 3 36 36 x 6 x 3 x 4 20 24 x 12 36 36 x 4 x 12

  12. Step 3: Compare the numerators G L 21 6 36 36 24 20 36 36

  13. Use LCD In order from greatest to least:

  14. 23 This is the hundredths place so the 3 needs to be in the hundredths place. 100 How to Convert Fractions to Decimals 3 2 .23

  15. How to Convert Fractions to Decimals 567 This is the thousandths place so the 7 needs to be in the thousandths place. 1000 6 7 5 .567

  16. How to Convert Fractions to Decimals 4 This is the thousandths place so the 4 needs to be in the thousandths place. 1000 0 4 0 .004

  17. How to Convert Fractions to Decimals 2 This is the tenths place so the 2 needs to be in the tenths place. 10 2 .2

  18. 5 Divide the Numerator by the Denominator 6 Suppose You Can’t Use A Denominator of 10?

  19. 5 3 8 . .0 0 6 5 6 4 8 2 0 Suppose You Can’t Use A Denominator of 10? .83 18 2

  20. Suppose You Can’t Use A Denominator of 10? 2 6 . .0 3 2 3 1 8 2 .6

  21. 7 7 Least to Greatest  6 6 8 8 10 10 .75 .6 .875 3 3 Now let’s order. . . 4 4

More Related