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Durply

  • one year ago

HELP PLZZ!!MEDAL and FAN

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  1. Durply
    • one year ago
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  2. Durply
    • one year ago
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    i need 3 corrected

  3. Michele_Laino
    • one year ago
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    hint: we have: \[\begin{gathered} - \frac{5}{{12}} = - \frac{{25}}{{60}} \hfill \\ \hfill \\ - \frac{2}{5} = - \frac{{24}}{{60}} \hfill \\ \end{gathered} \]

  4. Durply
    • one year ago
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    O SNAP THEY ARE NEGATIVE

  5. Durply
    • one year ago
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    lol so A

  6. Michele_Laino
    • one year ago
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    correct!

  7. Durply
    • one year ago
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  8. Michele_Laino
    • one year ago
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    -5/7 is negative, so it is located before the number zero: |dw:1434081055552:dw|

  9. Durply
    • one year ago
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    yup

  10. Durply
    • one year ago
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    so far so good

  11. Michele_Laino
    • one year ago
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    now we have to locate the remainig 2 fractions. what is the least common multiple between 5 and 9?

  12. Durply
    • one year ago
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    2/9

  13. Michele_Laino
    • one year ago
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    no, it is 45

  14. Durply
    • one year ago
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    what...

  15. Michele_Laino
    • one year ago
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    do you know what is the least common multiple?

  16. Durply
    • one year ago
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    ya

  17. Michele_Laino
    • one year ago
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    ok! So the least common multiple between 5 and 9 is 45

  18. Durply
    • one year ago
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    you cant do that

  19. Michele_Laino
    • one year ago
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    namely it is their product: 9*5=45

  20. Durply
    • one year ago
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    they are both odd

  21. skullpatrol
    • one year ago
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    Rewrite 3/5, 2/9 with a common denominator

  22. Durply
    • one year ago
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    o

  23. Durply
    • one year ago
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    45 ok i see

  24. Michele_Laino
    • one year ago
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    so we can write this: \[\begin{gathered} \frac{3}{5} = \frac{{27}}{{45}} \hfill \\ \hfill \\ \frac{2}{9} = \frac{{10}}{{45}} \hfill \\ \end{gathered} \]

  25. skullpatrol
    • one year ago
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    27 > 10

  26. Durply
    • one year ago
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    o I GET IT!!!

  27. Michele_Laino
    • one year ago
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    we have the subsequent graph: |dw:1434081491171:dw|

  28. skullpatrol
    • one year ago
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    You can only compare fractions with a common denominator.

  29. Durply
    • one year ago
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    SO I WAS RIGHT YAAAA!!!

  30. skullpatrol
    • one year ago
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    Or just use your calculator

  31. Michele_Laino
    • one year ago
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    for example, for 3/5, we have: 45/5 = 9, then 9*3=27, therefore we can write: \[\frac{3}{5} = \frac{{27}}{{45}}\] similarly for 2/9

  32. Durply
    • one year ago
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    wait :S was i correct

  33. Michele_Laino
    • one year ago
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    yes!

  34. skullpatrol
    • one year ago
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    3/5 = 0.6

  35. Michele_Laino
    • one year ago
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    it is option C

  36. Durply
    • one year ago
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    ok XD

  37. Durply
    • one year ago
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  38. Durply
    • one year ago
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    Im i correct

  39. Durply
    • one year ago
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    am*

  40. Michele_Laino
    • one year ago
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    we can write this: \[\begin{gathered} - \frac{5}{8} = - \frac{{1575}}{{2520}},\quad - \frac{7}{9} = - \frac{{1960}}{{2520}}, \hfill \\ \hfill \\ - \frac{4}{5} = - \frac{{2016}}{{2520}},\quad - \frac{3}{7} = - \frac{{1080}}{{2520}} \hfill \\ \end{gathered} \]

  41. Durply
    • one year ago
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    wow you are good

  42. Michele_Laino
    • one year ago
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    since the least common multiple of 8, 9, 5 and 7 is 2520

  43. Michele_Laino
    • one year ago
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    so, what is the right option?

  44. Durply
    • one year ago
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    B

  45. Michele_Laino
    • one year ago
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    that's right!

  46. Durply
    • one year ago
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    Thanks so much you did AWESOME

  47. Michele_Laino
    • one year ago
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    :)

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