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anonymous

  • 5 years ago

I need help on my fraction homework.

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  1. sandra
    • 5 years ago
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    hey nya was helping you in your other one heh

  2. sandra
    • 5 years ago
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    your other question

  3. anonymous
    • 5 years ago
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    I don't understand what you were talking about :(

  4. sandra
    • 5 years ago
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    well, let's do another practice problem

  5. anonymous
    • 5 years ago
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    No. I need help on my actual problem!!!

  6. sandra
    • 5 years ago
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    well, you wanted to compare 5 1/3 and 6.7

  7. sandra
    • 5 years ago
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    to do this, you want to convert 6.7 into a fraction too

  8. anonymous
    • 5 years ago
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    YES!

  9. sandra
    • 5 years ago
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    so the first rule of numbers is, if you multiple *any* number by 1, it is the same number

  10. sandra
    • 5 years ago
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    so to convert 6.7 into a fraction, you want to multiply it by some version of a fraction by multiplying by some version of 1 - in this case, you can multiple it by 10/10 (which is one)

  11. sandra
    • 5 years ago
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    so 6.7 * 10/10 = (6.7 * 10)/10 = 67/10

  12. sandra
    • 5 years ago
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    now we want to convert 5 1/3 to a non-mixed fraction

  13. sandra
    • 5 years ago
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    to do that, why don't we convert it into "1/3's"

  14. sandra
    • 5 years ago
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    thirds

  15. sandra
    • 5 years ago
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    so 5 1/3 = 5 + 1/3 5 = 5 * 3/3 = 15/3 so 5 1/3 = 15/3 + 1/3 = 16/3

  16. sandra
    • 5 years ago
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    so really, you're comparing 16/3 to 67/10

  17. sandra
    • 5 years ago
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    it's kind of hard to tell from just that right?

  18. sandra
    • 5 years ago
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    and so what you have to do, is make sure the bottom number in both of those fractions is the same - that way you can just compare the top numbers to tell which is bigger

  19. sandra
    • 5 years ago
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    that process is called finding a "common denominator"

  20. sandra
    • 5 years ago
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    a common bottom number for both fractions

  21. sandra
    • 5 years ago
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    now this is where our first rule comes back into play - you can multiply any number by "1" and you have the same number

  22. sandra
    • 5 years ago
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    So we want to make it so 16/3 to 67/10 both have the same bottom number. One way to make sure of that is find some number both of those bottom numbers - 3 and 10 - divide into evenly

  23. anonymous
    • 5 years ago
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    Ok, I think I am going 2 find somebody else!

  24. sandra
    • 5 years ago
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    ok good luck =)

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