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lexiamee

how to simplify proportions and ratios

  • one year ago
  • one year ago

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  1. KonradZuse
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    example?????

    • one year ago
  2. lexiamee
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    well 25 to 15 would that be 5 to 3

    • one year ago
  3. KonradZuse
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    yes correct.

    • one year ago
  4. lexiamee
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    thanks... what about 7 over 14x

    • one year ago
  5. KonradZuse
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    \[\frac{7}{14x}\]

    • one year ago
  6. lexiamee
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    yes

    • one year ago
  7. KonradZuse
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    just think about normally trying to break down fractions.

    • one year ago
  8. KonradZuse
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    7/14 = ?

    • one year ago
  9. KonradZuse
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    We can also plug in for x.

    • one year ago
  10. lexiamee
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    2

    • one year ago
  11. KonradZuse
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    \[\frac{7}{14 * 2}\]

    • one year ago
  12. KonradZuse
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    7/14 isn't 2.

    • one year ago
  13. lexiamee
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    1/2

    • one year ago
  14. KonradZuse
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    yes, correct. Now what is \[\frac{7}{14 * 2}\]

    • one year ago
  15. lexiamee
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    4

    • one year ago
  16. lexiamee
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    noooo hold on 1/4

    • one year ago
  17. KonradZuse
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    then solve \[\frac{1}{2 * 2}\]

    • one year ago
  18. lexiamee
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    so 1/4

    • one year ago
  19. KonradZuse
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    just remember if it's a bigger # on the bottom, then the bigger number stays.

    • one year ago
  20. KonradZuse
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    there.

    • one year ago
  21. KonradZuse
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    also remembe you can plug in any number to solve. As we see by plugging in 2 we get the same answer both ways.

    • one year ago
  22. KonradZuse
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    remember also that simplifying techniques are the same all over, just need to know the situations. Ratios, as above can be tricky if you dont' think about it.

    • one year ago
  23. lexiamee
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    how would I solve 4xy over 0.25x

    • one year ago
  24. KonradZuse
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    are you making this one up?

    • one year ago
  25. KonradZuse
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    or is it a legit Q?

    • one year ago
  26. lexiamee
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    no it is one of my questions for work.

    • one year ago
  27. KonradZuse
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    I guess we woudl just cancel out.

    • one year ago
  28. KonradZuse
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    \[\frac{4xy}{0.25x}\] \[\frac{4y}{0.25}\]

    • one year ago
  29. KonradZuse
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    always important to see what is in both denom and numerator. Cancelling is HUGE later on in math.

    • one year ago
  30. KonradZuse
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    now how many times does 0.25 go into 4?

    • one year ago
  31. lexiamee
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    idk

    • one year ago
  32. KonradZuse
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    ....... count it out. what's .25 x 2?

    • one year ago
  33. lexiamee
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    .25*2= .50

    • one year ago
  34. KonradZuse
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    yup, nowhow much is 4?

    • one year ago
  35. KonradZuse
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    0.25 x # = 4????

    • one year ago
  36. KonradZuse
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    or now that you know 0.5 you could do 0.5 x # = 4? then double it.

    • one year ago
  37. lexiamee
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    im lost sorry

    • one year ago
  38. KonradZuse
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    okay.... 0.25 x 2 = 0.50 0.25 x # = 4???? (0.25 x 2 = 0.50) x # = 4??

    • one year ago
  39. KonradZuse
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    how many times does 0.25 go into 4....

    • one year ago
  40. lexiamee
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    nevermind thank you

    • one year ago
  41. KonradZuse
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    :) so our final answer is???

    • one year ago
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