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anonymous

  • one year ago

Math help.

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    dividing by a third is like multiplying be 3

  3. Vocaloid
    • one year ago
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    to divide two fractions: switch the numerator and denominator on the SECOND fraction only, then multiply the two fractions

  4. anonymous
    • one year ago
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    Thanks for the help @chris00 , but @Vocaloid explains it easier

  5. anonymous
    • one year ago
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    ahah no problem

  6. anonymous
    • one year ago
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    Thanks though :)

  7. anonymous
    • one year ago
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    So 3/13 divided by 3/1

  8. Vocaloid
    • one year ago
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    well, yeah, except the division sign changes to a multiplication sign after you flip the fraction

  9. Vocaloid
    • one year ago
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    (3/13)*(3/1) = ?

  10. anonymous
    • one year ago
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    Ohhhh

  11. anonymous
    • one year ago
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    I find the LCD right?

  12. Vocaloid
    • one year ago
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    nope, just multiply across

  13. Vocaloid
    • one year ago
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    multiply the numerators, then multiply the denominators

  14. Vocaloid
    • one year ago
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    you only need to worry about LCD when you're adding/subtracting

  15. anonymous
    • one year ago
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    Ohh ok and I got 9/13

  16. Vocaloid
    • one year ago
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    great!

  17. Vocaloid
    • one year ago
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    same rule applies for 17 and 18

  18. anonymous
    • one year ago
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    Okay It'll take a bit but not long :)

  19. anonymous
    • one year ago
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    for 17 I got 18/24

  20. anonymous
    • one year ago
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    But I can simplify right?

  21. Vocaloid
    • one year ago
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    yeah, both 18 and 24 are divisible by 6

  22. anonymous
    • one year ago
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    So 3/4

  23. anonymous
    • one year ago
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    Now with 18 I conert -9 to -9/1 right?

  24. anonymous
    • one year ago
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    convert*

  25. Vocaloid
    • one year ago
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    yes

  26. Vocaloid
    • one year ago
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    so it ends up being (-9/1)*(8/5)

  27. anonymous
    • one year ago
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    72/5

  28. Vocaloid
    • one year ago
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    don't forget the negative sign -72/5

  29. anonymous
    • one year ago
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    oh yeah oops.

  30. Vocaloid
    • one year ago
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    that simplifies to -14 and 2/5

  31. anonymous
    • one year ago
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    Yep, sorry I thought I made a mistake somewhere but nvm

  32. Vocaloid
    • one year ago
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    good, ready to tackle the last two problems?

  33. anonymous
    • one year ago
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    Yep Making the new thread now

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