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Math Help - Operations with Positive Fractions

  1. #1
    Senior Member vaironxxrd's Avatar
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    Operations with Positive Fractions

    Sorry if this problem is very basic I just know the right procedure. This questions are from a placement test I will be taking, so expect to see similar ones.

    If you have four quarters, three dimes, two nickels, and two pennies, what fraction of the whole coin
    collection is in dimes?

    My procedure:
    Total money(whole coin collection ?) is - $1.42
    \frac{1.42}{.10}

    The right answer (given on the packet):
    \frac{3}{11}
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    Junior Member MathVideos's Avatar
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    Re: Operations with Positive Fractions

    Let me ask you another question that might help you see your flaw in thinking.
    If I have 1 red sock and 1 black sock, what fraction of my socks are red?
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    Senior Member vaironxxrd's Avatar
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    Re: Operations with Positive Fractions

    Quote Originally Posted by MathVideos View Post
    Let me ask you another question that might help you see your flaw in thinking.
    If I have 1 red sock and 1 black sock, what fraction of my socks are red?
    1/2
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    Junior Member MathVideos's Avatar
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    Re: Operations with Positive Fractions

    Does that give you any insight into where you made your mistake or do you need me to explain further?
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    Senior Member vaironxxrd's Avatar
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    Re: Operations with Positive Fractions

    Quote Originally Posted by MathVideos View Post
    Does that give you any insight into where you made your mistake or do you need me to explain further?
    Sincerely, I had to look the answer up to not be embarrassed, which is something I won't be able to do in the test.

    But to know if understand the concept they are asking me how many dimes, 3, are in the whole coin collection, 4+3+2+2 = 11?
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  6. #6
    Junior Member MathVideos's Avatar
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    Re: Operations with Positive Fractions

    That is correct (:

    Don't forget what a fraction literally is. It's saying what portion of the whole do you have.

    (part)/(whole)

    3 parts of 11 = 3/11
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