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anonymous

  • 5 years ago

help solve please 29 and 7/15 - 16 and 5/9

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  1. radar
    • 5 years ago
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    29 7/15 -16 5/9 ---------- 13 and some fraction. The fractions are 7/15-5/9

  2. radar
    • 5 years ago
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    Find the lowest common denominator for both 15 and 9. In this case I would start with 15 and go up in multiples until I found a value that contains 9 as a factor. 15 no, 30 no, 45 Bingo.

  3. radar
    • 5 years ago
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    45 is the LCD (Lowest Common Denominator. Convert the fractions to an equivalent fraction with a denominator of 45. 7/15 = 21/45 5/9 = 25/45 Did you follow that procedure with understanding?

  4. radar
    • 5 years ago
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    Back to the problem. We are to subtract 25/45 from 21/45 we are going to get a negative results. No problem, that is ok!!! 21/45-25/45=-4/45 Now are solution is 13 -4/45. To express this with an answer with a single sign we combine and get an answer of: 12 41/45

  5. anonymous
    • 5 years ago
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    yes

  6. anonymous
    • 5 years ago
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    thanks so much that helped alot

  7. radar
    • 5 years ago
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    Great, did you follow the 13 -4/45 becoming 12 41/45 ??

  8. radar
    • 5 years ago
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    13=12 45/45 -4/45 _______________ 12 41/45

  9. radar
    • 5 years ago
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    Just in case!

  10. anonymous
    • 5 years ago
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    yeah can you help me with this one its 4/2.4 = 6/x

  11. radar
    • 5 years ago
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    Is that decimal supposed to be in the denominator?

  12. anonymous
    • 5 years ago
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    yeah

  13. radar
    • 5 years ago
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    Ok Cross multiply getting 4x=(6)(2.4)

  14. radar
    • 5 years ago
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    x=(6)(2.4)/6

  15. radar
    • 5 years ago
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    You can solve. I gotta run. Birthday part for great grand daughter.

  16. anonymous
    • 5 years ago
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    ok thanks have fun

  17. radar
    • 5 years ago
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    I made a typo should be x=(6)(2.4)/4

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spraguer (Moderator)
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