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    Could anyone help me reach the correct answer, step by step?
    I'm stumped again.

    Any help with 7b would be much appreciated. I'm getting 3/7, which is extremely different to the text book answer (4).

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    (Original post by limegreenjello)
    Could anyone help me reach the correct answer, step by step?
    I'm stumped again.

    Any help with 7b would be much appreciated. I'm getting 3/7, which is extremely different to the text book answer (4).

    See image below:
    Show us what you have done.
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    Oh but it's so embarrassing to be such a math fail. You're all maths geniuses and I suck at thissss.

    Anyway:

    -4/3 divided by -4/3 + 1
    =
    4/3 divided by 7/3

    = 4 x 3 = 12
    3 x 7 = 21

    = 3/7
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    (Original post by BabyMaths)
    Show us what you have done.
    This

    I have been trying to get your incorrect answer but it does not fit with any error I can see
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    (Original post by limegreenjello)
    Oh but it's so embarrassing to be such a math fail. You're all maths geniuses and I suck at thissss.

    Anyway:

    -4/3 divided by -4/3 + 1
    =
    4/3 divided by 7/3

    = 4 x 3 = 12
    3 x 7 = 21

    = 3/7
    -4/3 + 1 doesn't equal -7/3
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    (Original post by limegreenjello)
    Oh but it's so embarrassing to be such a math fail. You're all maths geniuses and I suck at thissss.

    Anyway:

    -4/3 divided by -4/3 + 1
    =
    4/3 divided by 7/3

    = 4 x 3 = 12
    3 x 7 = 21

    = 3/7
    -\dfrac{4}{3} + 1 = -\dfrac{1}{3}


    AND

    even if that bit were correct

    \dfrac{12}{21} \not=\dfrac{3}{7}
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    If I were to research this further (via online tutorials) what kind of topic should I be looking up? Do I look up 'finding x in fractions'?
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    Ok so that's where I'm going wrong. How does it equal that? What's the arithmetic?
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    (Original post by limegreenjello)
    If I were to research this further (via online tutorials) what kind of topic should I be looking up? Do I look up 'finding x in fractions'?
    No - you need to learn how to add, subtract, and divide fractions

    It is not the algebra that is the issue it is your arithmetic
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    Oh okay. Thank you very much.
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    (Original post by limegreenjello)
    Ok so that's where I'm going wrong. How does it equal that? What's the arithmetic?
    Can you use the reply button so that we can see what you are responding too
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    (Original post by TenOfThem)
    -\dfrac{4}{3} + 1 = -\dfrac{1}{3}


    AND

    even if that bit were correct

    \dfrac{12}{21} \not=\dfrac{3}{7}
    Oh gosh. Maybe it should be 4/7.

    But I can't work out how -4/3 + 1 = - 1/3. How do you reach that?
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    (Original post by limegreenjello)

    But I can't work out how -4/3 + 1 = - 1/3. How do you reach that?
    I do not understand what you are asking

    1 - \dfrac{4}{3} = -\dfrac{1}{3}

    3 - 4 = -1

    You are subtracting 1 instead of adding it
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    (Original post by TenOfThem)
    I do not understand what you are asking

    1 - \dfrac{4}{3} = -\dfrac{1}{3}

    3 - 4 = -1

    You are subtracting 1 instead of adding it
    Right. Sorry. It's so obvious when it's pointed out.
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    (Original post by limegreenjello)
    Right. Sorry. It's so obvious when it's pointed out.
    Don't apologise


    As I said you need to practice some arithmetic with fractions before continuing with the algebra
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    Yes, I clearly must practice simple arithmetic first.

    Thank you again for your help.
 
 
 
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