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jessie13

  • one year ago

Will Medal Answer ASAP!!!!! please help! 1: What is the GCF of the numerator and denominator in the following fraction? -99/176 3 9 11 They are relatively prime. 2: Reduce -56/-70 to lowest terms. 8/10 -4/5 -2/3 4/5 3: Reduce -34/87 to lowest terms. -2/5 -1/3 -11/29 It is already reduced.

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  1. jessie13
    • one year ago
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    @welshfella

  2. welshfella
    • one year ago
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    factor -99 and 176 -99 = -3*3*11 176 = 2*2*2*11 to find the GCF pick out common factors

  3. jessie13
    • one year ago
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    11

  4. welshfella
    • one year ago
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    what is in the factors of both -99 and 176?

  5. welshfella
    • one year ago
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    right that's it :- 11 is the GCF

  6. jessie13
    • one year ago
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    okay thanks do u know #2 and #3?

  7. welshfella
    • one year ago
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    for number 2 find the factors of 56 and 70 and cancel out the common ones also remember that - / - = +

  8. jessie13
    • one year ago
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    ??????

  9. welshfella
    • one year ago
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    so we have |dw:1444064155490:dw|

  10. jessie13
    • one year ago
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    I dont get it!

  11. welshfella
    • one year ago
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    |dw:1444064283329:dw|

  12. welshfella
    • one year ago
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    because -7 * -7 = 1

  13. jessie13
    • one year ago
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    ok

  14. welshfella
    • one year ago
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    now you can simplify 8/10 a bit further by dividing top and bottom by 2

  15. welshfella
    • one year ago
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    - to give the fraction in lowest terms

  16. jessie13
    • one year ago
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    4/5?

  17. welshfella
    • one year ago
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    right

  18. jessie13
    • one year ago
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    okay so its just 4/5 not -4/5

  19. jessie13
    • one year ago
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    right?

  20. welshfella
    • one year ago
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    yes

  21. jessie13
    • one year ago
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    k do u know #3??

  22. welshfella
    • one year ago
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    - because both nunerator and denominator or negative

  23. welshfella
    • one year ago
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    - / - = +

  24. welshfella
    • one year ago
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    No its 4/5

  25. jessie13
    • one year ago
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    oh okay!

  26. anonymous
    • one year ago
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    Yeahh

  27. welshfella
    • one year ago
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    a negative divided by a negative gives a positive

  28. jessie13
    • one year ago
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    oh ya i forgot that!!

  29. welshfella
    • one year ago
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    No 3 - try finding the factors of -34 and 87 and see if there are any common ones. If not then the fraction is prime.

  30. welshfella
    • one year ago
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    -34 = - 2* 17 87 = 3* 29 are there any common factors?

  31. jessie13
    • one year ago
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    no

  32. welshfella
    • one year ago
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    If not then its reduced ti its simplest form already.

  33. welshfella
    • one year ago
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    right

  34. jessie13
    • one year ago
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    oh okay thanks!

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