public bool isIllegal(Rational rat)
{
bool isillegal;
if (rat.denominator == 0)
{
isillegal = true;
}
else
{
isillegal = false;
}
return isillegal;
}
public void IncreaseBy(Rational input)
{
int numtemp = numerator, dentemp = denominator;
int innumtemp = input.numerator, indentemp = input.denominator;
numtemp *= input.denominator;
dentemp *= input.denominator;
innumtemp *= denominator;
indentemp *= denominator;
numtemp += innumtemp;
dentemp += indentemp;
numerator = numtemp;
denominator = dentemp;
}