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September 7th, 2016, 04:06 PM  #1 
Member Joined: Mar 2016 From: NJ Posts: 48 Thanks: 2  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. 
September 7th, 2016, 04:29 PM  #2 
Global Moderator Joined: May 2007 Posts: 6,787 Thanks: 708 
7/3=7/3 for convenience, it is better to get rid of the minus signs.

September 7th, 2016, 04:30 PM  #3 
Global Moderator Joined: Oct 2008 From: London, Ontario, Canada  The Forest City Posts: 7,950 Thanks: 1141 Math Focus: Elementary mathematics and beyond 
$$\frac{7}{3}=\frac{(1)\cdot7}{(1)\cdot3}=\frac73$$

September 27th, 2016, 01:14 AM  #4 
Member Joined: Sep 2016 From: India Posts: 88 Thanks: 30 
negative/negative=positive Here, numerator and denominator both are negative so it will be equal to positive. i.e., 7/3=7/3 Last edited by deesuwalka; September 27th, 2016 at 01:20 AM. 

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