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Math Help - Rational Expressions

  1. #1
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    Rational Expressions

    Reduce to Fractions whose terms are positive:

    1)  - \frac {-y-z}{-x-z}

    2)  - \frac {-a(b+c)}{b(-a-b)}

    I know this is probably really simple, but I'm struggling. If someone could do these step-by-step, that'd be appreciated.
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  2. #2
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    Just take the negatives out from the top and bottom. They should then cancel.
    At least that seems to be what it is looking for.
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  3. #3
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by PandaPanda View Post
    Reduce to Fractions whose terms are positive:

    1)  - \frac {-y-z}{-x-z}
    factor out -1 from the numerator and denominator, you get:

    - \frac {-(y + z)}{-(x + z)} = - \frac {y + z}{x + z}

    do a similar thing for the second
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