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anonymous

  • 4 years ago

How do I rename a fraction?

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  1. anonymous
    • 4 years ago
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    |dw:1328111969741:dw|

  2. anonymous
    • 4 years ago
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    This is the problem.

  3. anonymous
    • 4 years ago
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    To convert from a mixed fraction an improper fraction, multiply the whole number and the denominator, then add the numerator

  4. anonymous
    • 4 years ago
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    Then find the lowest common denominator to solve

  5. anonymous
    • 4 years ago
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    Could you draw it for me please?

  6. anonymous
    • 4 years ago
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    \[39\frac{1}{7}=\frac{274}{7}\]

  7. anonymous
    • 4 years ago
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    \[11\frac{5}{6}=\frac{71}{6}\]

  8. anonymous
    • 4 years ago
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    to solve, you need to find the LCD; here it is 42. Multiply each numerator by the LCD divided by the denominator

  9. anonymous
    • 4 years ago
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    \[\frac{274*6}{42} - \frac{71*7}{42}\]

  10. anonymous
    • 4 years ago
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    \[=\frac{1147}{42}\] or \[27 \frac{13}{42}\]

  11. anonymous
    • 4 years ago
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    So can you help me with this last one please? I didn't really understand that....:(

  12. anonymous
    • 4 years ago
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    |dw:1328112550425:dw|

  13. anonymous
    • 4 years ago
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    \[39\frac{1}{7} = \frac{39*7+1}{7}\]

  14. anonymous
    • 4 years ago
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    Can you convert \[68\frac{1}{3}\] to an improper fraction using what I told you?

  15. anonymous
    • 4 years ago
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    Okay. I will try. here it goes.

  16. anonymous
    • 4 years ago
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    |dw:1328112985042:dw|

  17. anonymous
    • 4 years ago
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    that's right, now try the other one

  18. anonymous
    • 4 years ago
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    |dw:1328113186101:dw|

  19. anonymous
    • 4 years ago
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    Yep. Now what is the LCD of 3 and 10?

  20. anonymous
    • 4 years ago
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    30?

  21. anonymous
    • 4 years ago
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    Yep

  22. anonymous
    • 4 years ago
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    So you would multiply 205/3 by what?

  23. anonymous
    • 4 years ago
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    Ummmmm.

  24. anonymous
    • 4 years ago
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    I really don't know!

  25. anonymous
    • 4 years ago
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    You would multiply 205 by 10 because the LCD/denominator is 10, or 10*3=30

  26. anonymous
    • 4 years ago
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    So you'd have \[\frac{2050}{30}\]

  27. anonymous
    • 4 years ago
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    But the numerator is bigger than the denominator.

  28. anonymous
    • 4 years ago
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    Now what would you multiply 497/10 by?

  29. anonymous
    • 4 years ago
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    3

  30. anonymous
    • 4 years ago
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    Yup

  31. anonymous
    • 4 years ago
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    What would that translate to?

  32. anonymous
    • 4 years ago
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    I don't know. Sorry. :(

  33. anonymous
    • 4 years ago
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    \[\frac{497*3}{30}=\frac{1491}{30}\]

  34. anonymous
    • 4 years ago
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    Now you can figure out \[\frac{1491}{30}+\frac{2050}{30}=?\]

  35. anonymous
    • 4 years ago
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    Um, It was minus.

  36. anonymous
    • 4 years ago
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    But the answer to that is 3541/30.

  37. anonymous
    • 4 years ago
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    There's a plus sign in your drawing

  38. anonymous
    • 4 years ago
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    Oh yeah! Sorry about that! It is supposed to be a minus sign! -

  39. anonymous
    • 4 years ago
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    the answet is 559/30 Correct?

  40. anonymous
    • 4 years ago
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    So you'd have \[\frac{559}{30} or 18\frac{19}{30}\]

  41. anonymous
    • 4 years ago
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    Thank you so much! Can you watch me on the next one? it won't take long!

  42. anonymous
    • 4 years ago
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    |dw:1328113984727:dw|

  43. anonymous
    • 4 years ago
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    Okay I will type out the answer.

  44. anonymous
    • 4 years ago
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    39 * 6 + 1 = 235

  45. anonymous
    • 4 years ago
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    14 * 12 + 7 = 175

  46. anonymous
    • 4 years ago
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    And the denominator would be 12 itself!

  47. anonymous
    • 4 years ago
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    yes, the LCD is 12

  48. anonymous
    • 4 years ago
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    So the answer is 295/12 - 174/12 and the answer is = 121/12

  49. anonymous
    • 4 years ago
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    Where are 295 and 174 coming from?

  50. anonymous
    • 4 years ago
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    And the final answer is: 10 8/12 = 5 4/6

  51. anonymous
    • 4 years ago
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    |dw:1328114480972:dw|

  52. anonymous
    • 4 years ago
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    Remember you have this worked out so far: \[\frac{235}{6}-\frac{175}{12}\]

  53. anonymous
    • 4 years ago
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    You found the LCD, but you still have to multiply 235 by a number to express it in terms of that LCD.

  54. anonymous
    • 4 years ago
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    What number is that?

  55. anonymous
    • 4 years ago
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    2

  56. anonymous
    • 4 years ago
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    Yes, so now your new fraction is?

  57. anonymous
    • 4 years ago
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    470/12

  58. anonymous
    • 4 years ago
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    So,\[\frac{470}{12}-\frac{175}{12}\]

  59. anonymous
    • 4 years ago
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    295/12

  60. anonymous
    • 4 years ago
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    Yep, that's your answer.

  61. anonymous
    • 4 years ago
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    So what about the whole numbers? Do I just subtract them?

  62. anonymous
    • 4 years ago
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    The whole numbers? You mean to convert to a mixed fraction?

  63. anonymous
    • 4 years ago
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    Oh nevermind! I know what I have to do with them. ;)

  64. anonymous
    • 4 years ago
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    Your final answer would be \[24\frac{7}{12}\]

  65. anonymous
    • 4 years ago
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    Okay thank you so much! One more please?

  66. anonymous
    • 4 years ago
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    Ok, post it and show the work. I'll let you know if you go wrong

  67. anonymous
    • 4 years ago
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    Okay!

  68. anonymous
    • 4 years ago
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    Remember when you find the LCD to multiply the numerator by a factor

  69. anonymous
    • 4 years ago
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    |dw:1328115211253:dw|

  70. anonymous
    • 4 years ago
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    |dw:1328115329692:dw|

  71. anonymous
    • 4 years ago
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    |dw:1328115396858:dw|

  72. anonymous
    • 4 years ago
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    The LCD is 10

  73. anonymous
    • 4 years ago
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    So,

  74. anonymous
    • 4 years ago
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    |dw:1328115537147:dw|

  75. anonymous
    • 4 years ago
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    |dw:1328115676081:dw|

  76. anonymous
    • 4 years ago
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    Looking good so far

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