
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
June 18th, 2016, 04:52 AM  #1 
Newbie Joined: Jun 2016 From: Maine Posts: 9 Thanks: 1 Math Focus: Enjoyed algebra for its utility  Simple Arithmetic that makes me bang my head
So I'm trying to study math again and looking at an algebra cheat sheet. How does this make sense? (ab) / (cd) = (ba) / (dc) HELP! 
June 18th, 2016, 04:55 AM  #2 
Math Team Joined: Jul 2011 From: Texas Posts: 2,949 Thanks: 1555 
$\dfrac{ab}{cd} = \dfrac{1(ab)}{1(cd)}= \dfrac{ba}{dc}$

June 18th, 2016, 05:00 AM  #3 
Newbie Joined: Jun 2016 From: Maine Posts: 9 Thanks: 1 Math Focus: Enjoyed algebra for its utility  
June 18th, 2016, 05:04 AM  #4 
Math Team Joined: Jul 2011 From: Texas Posts: 2,949 Thanks: 1555  
June 19th, 2016, 05:49 AM  #5 
Senior Member Joined: May 2016 From: USA Posts: 1,310 Thanks: 551  If you want to start learning LaTeX, a good way is to reply with quote to a post using LaTeX. You will then see the actual code in the reply box. Also very helpful is https://en.m.wikipedia.org/wiki/Wikipedia:LaTeX_symbols Last edited by JeffM1; June 19th, 2016 at 05:56 AM. 

Tags 
arithmetic, bang, head, makes, simple 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
A Very Simple Arithmetic Question  Timios  Elementary Math  35  March 31st, 2016 09:54 AM 
Simple modular arithmetic eqation  Skyer  Number Theory  2  February 29th, 2012 06:53 AM 
Precision Arithmetic: A New FloatingPoint Arithmetic  Chengpu  Real Analysis  3  June 2nd, 2010 11:37 AM 
Precision Arithmetic: A New FloatingPoint Arithmetic  Chengpu  Linear Algebra  0  May 23rd, 2010 04:55 PM 