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September 7th, 2016, 05:06 PM   #1
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double negative fraction

Hi,

If I have a fraction where the numerator and denominator are both negative but I'm going to keep it as a fraction, does it convert to a positive anyway?

For example, if I have:

-3y= -7x + 9 and I solve for y to get

y= -7/-3x -3

What does -7/-3 become if I'm not going to keep it as a fraction? Does it convert to -7/3, 7/3, or remain -7/-3?

Thanks for any help.
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September 7th, 2016, 05:29 PM   #2
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-7/-3=7/3 for convenience, it is better to get rid of the minus signs.
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September 7th, 2016, 05:30 PM   #3
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$$\frac{-7}{-3}=\frac{(-1)\cdot7}{(-1)\cdot3}=\frac73$$
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September 27th, 2016, 02:14 AM   #4
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negative/negative=positive

Here, numerator and denominator both are negative so it will be equal to positive.

i.e., -7/-3=7/3
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Last edited by deesuwalka; September 27th, 2016 at 02:20 AM.
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