
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
September 10th, 2014, 05:34 PM  #1 
Senior Member Joined: Nov 2010 From: Indonesia Posts: 1,954 Thanks: 132 Math Focus: Trigonometry  Algebraic Fraction Addition
5. The simple form of $\displaystyle \frac{4xy}{5}+\frac{15x}{2y^2} is ....$ A. $\displaystyle \frac{6x}{y^2}$ B. $\displaystyle \frac{60xy}{10y^2}$ C. $\displaystyle \frac{6x^2}{y^2}$ D. $\displaystyle \frac{6x^2}{y}$ I did it like this: $\displaystyle \frac{4xy}{5}+\frac{15x}{2y^2}$ $\displaystyle =\frac{2y^2(4xy)}{10y^2}+\frac{5(15x)}{10y^2}$ $\displaystyle =\frac{8xy^3+75x}{10y^2}$ Got stuck there. Can it be simplified further? 
September 10th, 2014, 06:15 PM  #2  
Math Team Joined: May 2013 From: The Astral plane Posts: 1,797 Thanks: 715 Math Focus: Wibbly wobbly timeywimey stuff.  Quote:
Dan  
September 10th, 2014, 09:13 PM  #3 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 12,438 Thanks: 832  
September 11th, 2014, 03:53 AM  #4  
Senior Member Joined: Nov 2010 From: Indonesia Posts: 1,954 Thanks: 132 Math Focus: Trigonometry  Quote:
Maybe the one who wrote by handwriting intended to write $\displaystyle \times$ but the symbol was a bit slant so the typewriter mistook it as a +.  

Tags 
addition, algebraic, fraction 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Please help me understand a basic algebraic fraction  conure  Algebra  3  October 21st, 2013 11:33 AM 
Algebraic Fraction  watkd  Algebra  4  January 9th, 2012 08:03 PM 
Algebraic Fraction  watkd  Algebra  2  July 4th, 2011 06:10 AM 
Need Help With Algebraic Fraction  watkd  Algebra  12  June 29th, 2011 04:40 PM 
Fraction additionwhere is the hole?  arun  Number Theory  15  February 11th, 2007 01:42 PM 