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June 27th, 2016, 11:18 PM  #1 
Newbie Joined: Jul 2013 Posts: 5 Thanks: 0  Simplify
Please specify the shortcut method to solve the following problem 1/5*2/7*8/3*4095=? 
June 27th, 2016, 11:58 PM  #2 
Global Moderator Joined: Dec 2006 Posts: 20,926 Thanks: 2205 
1/5*2/7*8/3*4095 = 2/7*8/3*(4095/5) = 2/7*8/3*819 = 2*8/3*(819/7) = 2*8/3*117 etc.

June 28th, 2016, 01:51 PM  #3 
Global Moderator Joined: May 2007 Posts: 6,806 Thanks: 716 
The shortcut in this case is based on recognizing that 4095 has among its factors 3,5,7 and dividing them out first.


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