Extension method operations for RationalTime.
All binary operations throw exceptions if the rates for 2 operands do not match.
| Method | Description | 
|---|---|
| Add | Adds two Rational Times together. | 
| Convert | Converts a RationalTime from one rate to another. This is lossless unless it triggers an overflow. | 
| Divide | Divides a RationalTime by another. | 
| IsValid | Validity check. | 
| Multiply | Multiplies two Rational Times together. | 
| Subtract | Subtracts a RationalTime from another. | 
| ToDouble | Converts the data type to Double. |