$1.$ Add three new functions to the program: to subtract, multiply, and divide two Fractions. $($basing them on the add function that is already defined. $)2.$ Add a function that takes a Fraction struct as a parameter and returns a double that is the decimal representation of the data contained in the fraction $($for example, $1/2$ would convert to $\mathrm{.}5)\mathrm{.}3.$ Show the results of using all of your functions.Add code to loop and displays the results of using all of your functions $($subtract$,$ multiply, divide, decimal$).$ Use the code that outputs the results of adding two Fractions as your model.