
Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion 
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July 28th, 2019, 08:20 PM  #1 
Newbie Joined: Jan 2019 From: bangladesh Posts: 3 Thanks: 0  why do we represent rational number by p/q?
why do we represent rational number by p/q, why can't you not use m/n, x/y, c/y, a/c, etc. is there any meaning by (p/q)? 
July 28th, 2019, 08:54 PM  #2  
Math Team Joined: May 2013 From: The Astral plane Posts: 2,304 Thanks: 961 Math Focus: Wibbly wobbly timeywimey stuff.  Quote:
Dan  
July 29th, 2019, 05:31 AM  #3  
Math Team Joined: Dec 2013 From: Colombia Posts: 7,690 Thanks: 2669 Math Focus: Mainly analysis and algebra  Quote:
It's just a convention, no different to using $x$ and $y$ as variables in the plane or $x$ and $t$ in onedimensional motion.  

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number, p or q, rational, represent 
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