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Math Help - Urgent Fraction Help!!

  1. #1
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    Urgent Fraction Help!!

    Place the following fractions into order from highest to lowest

    7/4 1/6 7/2
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  2. #2
    Super Member Matt Westwood's Avatar
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    Easiest way to compare 2 fractions is to give them a common denominator.

    The quickest way to do that is to multiply top and bottom of the one fraction with the bottom of the other, and vice versa.

    So for 7/4 and 1/6, you multiply top and bottom of 7/4 by 6, and top and bottom of 1/6 by 4.

    This gives you 42 / 24 compared with 4/24 and the ordering of these is obvious.

    It occurs to me there's a quick way of doing it by eye in this case:

    7/4 is between 1 and 2, 7/2 is between 3 and 4 and 1/6 is between 0 and 1.
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  3. #3
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    So thats the order then?
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  4. #4
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    Lets change it to decimal numbers.

    \frac74   = 1.75

    \frac16   =0.167 To 3 decimal places.

    \frac72 = 3.5

    Can you place this in order from highest to lowest?
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  5. #5
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    Wink ...

    So it's 7/2 7/4 1/6


    It's not actually for me, it's for someone elses job application lol

    So I'm only really looking for the answer and not a full explanation lol

    But thanx anyway!
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  6. #6
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    Quote Originally Posted by jeri2008 View Post
    So it's 7/2 7/4 1/6
    Yes, that is correct.

    \text{Highest: }\frac72, \frac74, \frac16 \text{ :Lowest}
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