[c-prog] Convert a double number to a fraction.

[keecha25]

The math part is not correct. Can't figure out how to fix so that 
when you put in a decimal number, it gives you the LCD fraction. 
Here's the code: 
CRational::CRational (int getnumerator, int getdenominator ) 
{
m_numerator = getnumerator;
m_denominator = getdenominator;

setProperForm();
}

CRational::CRational (double value) // conversion constructor
{
double x = 1/value;

// find nearest full number
double n = 1;

double d = x;

while(((int)(d * 10.0) % 10)!= 0)
{
n = n + 1;
d = x * n;

}

m_numerator = (int)n;
m_denominator = (int)d;

setProperForm();
}