/// <summary>
/// Multiply two fractions
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns>The product of a and b</returns>
public static FractionModel Multiply(FractionModel a, FractionModel b)
{
var res = new FractionModel(a.Numerator * b.Numerator, a.Denominator * b.Denominator);
res.Simplify();
return(res);
}
/// <summary>
/// Subtracts two fractions
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns>The difference of a and f=b</returns>
public static FractionModel Subtract(FractionModel a, FractionModel b)
{
int lcm = FindLeastCommonMultiple(a.Denominator, b.Denominator);
int num = a.Numerator * (lcm / a.Denominator) - b.Numerator * (lcm / b.Denominator);
FractionModel res = new FractionModel(num, lcm);
res.Simplify();
return(res);
}
private void buttonSimplify_Click(object sender, System.EventArgs e)
{
FractionModel f = (FractionModel)listBoxFractions.SelectedItem;
if (listBoxFractions.SelectedItem != null)
{
f.Simplify();
fractions.ResetBindings();
}
}
/// <summary>
/// Convert a decimal to a fraction
/// </summary>
/// <param name="d">The decimal to convert</param>
/// <returns>The decimal represented as a fraction</returns>
public static FractionModel ConvertDecimalToFraction(decimal d)
{
double decimalPlaces = NumberOfDecimalPlaces(d);
int multiplier = (int)Math.Pow(10, decimalPlaces);
FractionModel fraction = new FractionModel((int)(d * multiplier), multiplier);
fraction.Simplify();
return(fraction);
}
