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rainbow_rocks03

  • one year ago

PLZ explain, NO direct answers, Will medal for best response.

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  1. rainbow_rocks03
    • one year ago
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  2. rainbow_rocks03
    • one year ago
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    @haleyelizabeth2017

  3. zepdrix
    • one year ago
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    Were you able to find the LCM of 8 and 10? :)

  4. rainbow_rocks03
    • one year ago
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    i am typing it right now...

  5. rainbow_rocks03
    • one year ago
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    LCM of 8 and 10 is 40?

  6. zepdrix
    • one year ago
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    \(\large\rm 8=2\cdot4\) \(\large\rm 10=2\cdot5\) \(\large\rm LCM(8,10)=2\cdot4\cdot5=40\) Ok good!

  7. zepdrix
    • one year ago
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    \[\large\rm \frac{5}{8}-\frac{3}{10}\color{royalblue}{\frac{4}{4}}\]To get that denominator, clearly the second fraction needs a 4. What about the first one? :o

  8. rainbow_rocks03
    • one year ago
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    umm idk

  9. zepdrix
    • one year ago
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    8 times something is 40, hmm

  10. rainbow_rocks03
    • one year ago
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    5

  11. zepdrix
    • one year ago
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    Ok good.\[\large\rm \color{royalblue}{\frac{5}{5}}\cdot\frac{5}{8}-\frac{3}{10}\cdot\color{royalblue}{\frac{4}{4}}\]

  12. zepdrix
    • one year ago
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    So we know the denominators will be 40, we worked that out already,\[\large\rm \frac{5\cdot5}{40}-\frac{3\cdot4}{40}\]Can you figure out the tops? :)

  13. rainbow_rocks03
    • one year ago
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    yes, 5*5=25 and 3*4=12

  14. rainbow_rocks03
    • one year ago
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    sorry I took long to response my internet was loading REALLY slow

  15. rainbow_rocks03
    • one year ago
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    @zepdrix

  16. zepdrix
    • one year ago
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    \[\large\rm \frac{25}{40}-\frac{12}{40}\]

  17. zepdrix
    • one year ago
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    Good :) Now just subtract numerators, ya?

  18. rainbow_rocks03
    • one year ago
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    25-12=13

  19. rainbow_rocks03
    • one year ago
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    @zepdrix

  20. rainbow_rocks03
    • one year ago
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    @zepdrix

  21. rainbow_rocks03
    • one year ago
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    so my answer 13/40

  22. zepdrix
    • one year ago
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    yay good job \c:/

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spraguer (Moderator)
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