Solved

fractions part2

Posted on 1998-11-01
3
284 Views
Last Modified: 2010-04-02
I have this recursive function again.
long gcd (long x, long y)
{
   return (x==0L) ? y : gcd( y % x,x);
}
this is supposed to keep fractions in the lowest terms.
it works fine for addition and subtraction
how can I use it for multiplication and division.
I have always multiplied fractions like this
a/b *c/d = a *c / b*d
how can I use the gcd to reduce
thanks in advance.
0
Comment
Question by:strmtrpr
3 Comments
 
LVL 84

Expert Comment

by:ozo
ID: 1176769
gcd(a*c,b*d)
0
 
LVL 22

Accepted Solution

by:
nietod earned 50 total points
ID: 1176770
Once you have your result

(a*c)/(b*d)

use GCD to find the greatest common factor of  the numerator and the denominator, that is

GCD(a*c,b*d)

Then divide the numerator and denumenator by this GCD value.  Let me know if you have questions.


0
 

Author Comment

by:strmtrpr
ID: 1176771
that did it , I had the right idea I just messed up my syntax  a little.

Thank you for your help.
0

Featured Post

Active Directory Webinar

We all know we need to protect and secure our privileges, but where to start? Join Experts Exchange and ManageEngine on Tuesday, April 11, 2017 10:00 AM PDT to learn how to track and secure privileged users in Active Directory.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
MSVCR80.dll crash 2 141
Cross compile release version of c++ program for linux 2 136
How to convert MFC APP to Win32 APP. 19 97
learn programming 8 42
In days of old, returning something by value from a function in C++ was necessarily avoided because it would, invariably, involve one or even two copies of the object being created and potentially costly calls to a copy-constructor and destructor. A…
What is C++ STL?: STL stands for Standard Template Library and is a part of standard C++ libraries. It contains many useful data structures (containers) and algorithms, which can spare you a lot of the time. Today we will look at the STL Vector. …
The goal of the video will be to teach the user the concept of local variables and scope. An example of a locally defined variable will be given as well as an explanation of what scope is in C++. The local variable and concept of scope will be relat…
The viewer will learn how to clear a vector as well as how to detect empty vectors in C++.

828 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question