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anonymous

  • 4 years ago

what is 7/9- 5/12?

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  1. RagingSquirrel
    • 4 years ago
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    Welcome to openstudy. I'll have your answer in a min.

  2. anonymous
    • 4 years ago
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    k help????

  3. RagingSquirrel
    • 4 years ago
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    13/36

  4. anonymous
    • 4 years ago
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    is that the answer?

  5. RagingSquirrel
    • 4 years ago
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    Yep.

  6. anonymous
    • 4 years ago
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    i have another

  7. RagingSquirrel
    • 4 years ago
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    go ahead.

  8. anonymous
    • 4 years ago
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    wat is the least common denominator of 5/12 and 7/18

  9. RagingSquirrel
    • 4 years ago
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    do you want an explanation or just an answer?

  10. anonymous
    • 4 years ago
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    36

  11. anonymous
    • 4 years ago
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    just the answer? 36?

  12. anonymous
    • 4 years ago
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    to figure this out we should find a common divisor. to do this, we should multiply the left fraction by 1 in the form of the divisor of the right fraction and the right fraction by 1 in the form of the divisor of the left fraction. Sounds wordy but its like this: \[\frac{12}{12}\times\frac{7}{9}-\frac{9}{9}\times\frac{5}{12}\]after this we have everything in terms of the same base, and we can write it like this: \[\frac{84-45}{108}=\frac{39}{108}\]which reduces down to 13/36

  13. anonymous
    • 4 years ago
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    yeah it's the lowest number that is divisible b both 18 and 12

  14. RagingSquirrel
    • 4 years ago
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    haha... i knew junkie was typing up something big

  15. anonymous
    • 4 years ago
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    It's what I do :)

  16. anonymous
    • 4 years ago
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    another

  17. anonymous
    • 4 years ago
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    change to a mix number 145/14

  18. RagingSquirrel
    • 4 years ago
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    you sure you dont want me to explain?

  19. anonymous
    • 4 years ago
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    14 5/14

  20. anonymous
    • 4 years ago
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    10 5/14*

  21. anonymous
    • 4 years ago
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    which answer?

  22. anonymous
    • 4 years ago
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    the second

  23. RagingSquirrel
    • 4 years ago
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    lol i was like... whaaa?

  24. anonymous
    • 4 years ago
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    another

  25. anonymous
    • 4 years ago
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    are you sure you're learning through this?

  26. anonymous
    • 4 years ago
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    7 and 1/5 divided by 1 and 1/5

  27. anonymous
    • 4 years ago
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    yes just checking my answers

  28. RagingSquirrel
    • 4 years ago
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    6.

  29. anonymous
    • 4 years ago
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    is that the answer 6

  30. RagingSquirrel
    • 4 years ago
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    yeah.

  31. anonymous
    • 4 years ago
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    36/5//6/5 =6

  32. RagingSquirrel
    • 4 years ago
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    hey, dont forget to click "good answer". It would really help me out.

  33. anonymous
    • 4 years ago
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    same

  34. RagingSquirrel
    • 4 years ago
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    Thanks! Leveled up to 16.

  35. anonymous
    • 4 years ago
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    thanks

  36. anonymous
    • 4 years ago
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    ok now i have another

  37. RagingSquirrel
    • 4 years ago
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    shoot

  38. anonymous
    • 4 years ago
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    evaluate using the correct order of operations for 1/4 3/8 and 5/6

  39. anonymous
    • 4 years ago
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    sorry im not too good with math

  40. anonymous
    • 4 years ago
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    are you supposed to add them?

  41. anonymous
    • 4 years ago
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    it just says evaluate using the correct order of operations

  42. RagingSquirrel
    • 4 years ago
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    order of operations can be abbreviated PEMDAs. In 5th grade i didnt think it would help that much, but it did. Parentheses Equations Multiplication Division Addition

  43. anonymous
    • 4 years ago
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    my bad i gave u the wrong one

  44. anonymous
    • 4 years ago
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    ahaha..

  45. anonymous
    • 4 years ago
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    its find the least common denominator

  46. anonymous
    • 4 years ago
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    24

  47. anonymous
    • 4 years ago
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    the lowest number divisible by 4 6 and 8 is 24

  48. RagingSquirrel
    • 4 years ago
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    that.... makes sense

  49. anonymous
    • 4 years ago
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    ok now wat is 7/8 divided by 5/11

  50. RagingSquirrel
    • 4 years ago
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    one sec.

  51. RagingSquirrel
    • 4 years ago
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    1 37/40

  52. anonymous
    • 4 years ago
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    how did u get that?

  53. anonymous
    • 4 years ago
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    i could be wrong, but this is what i got. ( 7 / 9) - (5 / 12) = 0.361111111

  54. RagingSquirrel
    • 4 years ago
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    turn the second numbers around. then you simply multiply

  55. anonymous
    • 4 years ago
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    woah hold on here i can do that

  56. RagingSquirrel
    • 4 years ago
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    Ice, she asked for division.

  57. anonymous
    • 4 years ago
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    7/8//5/11=7/8*11/5=77/40

  58. anonymous
    • 4 years ago
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    what is 18 and 6/7 minus 13 and 13/14

  59. RagingSquirrel
    • 4 years ago
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    http://www.homeschoolmath.net/worksheets/fraction_calculator.php

  60. anonymous
    • 4 years ago
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    oh. nevermind. My bad. I misread.

  61. anonymous
    • 4 years ago
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    omg thank you so much!!!!!!

  62. RagingSquirrel
    • 4 years ago
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    Haha, google is my friend.

  63. anonymous
    • 4 years ago
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    i tried lookifind anyng for so many i couldnt

  64. anonymous
    • 4 years ago
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    i tried looking i couldnt find any

  65. anonymous
    • 4 years ago
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    i need help with one more

  66. RagingSquirrel
    • 4 years ago
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    okay. take your time.

  67. anonymous
    • 4 years ago
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    [ 1/2+ 1/3)\times7/5

  68. RagingSquirrel
    • 4 years ago
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    remember. PEDMAS.

  69. anonymous
    • 4 years ago
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    i got confused with this one

  70. RagingSquirrel
    • 4 years ago
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    This is order of operations.

  71. RagingSquirrel
    • 4 years ago
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    Parentheses Equations Multiplication Division Addition

  72. RagingSquirrel
    • 4 years ago
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    the ( ) s are parentheses. So we handle them first.

  73. RagingSquirrel
    • 4 years ago
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    1/2 + 1/3 = 5/6. So we can simplify down to 5/6 times 7/5

  74. RagingSquirrel
    • 4 years ago
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    Theres no equations, so we go to multiplication.

  75. RagingSquirrel
    • 4 years ago
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    5/6 Times 7/5 is 2 and 7/30. So theres your answer. 2 7/30

  76. anonymous
    • 4 years ago
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    reduce 14 1/24

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