In C program do the following:

(a) Declare a data structure that will contain a rational number

(b) write a function that will add, subtract, multiply, and divide rational numbers. In all functions, pass in three parameters, each pointing to a data structure of the type you declared in part a. Use two of the parameters for the operands, and the third for result.

(c) write a function that takes a pointer to your data structure as a parameter and returns the greatest common divisor of the numerator and denominator.

(d) use your function from part c to write a function that will reduce a fraction (rational number) to lowest terms. Pass in a pointer to the fraction and have the fraction modified by the function.

(e) write input and output functions so that a user can enter a fraction in the form 2/3, -5/6, 4/-5, or -12/-33

and the output is in the same form. Have your input function check for errors in the input and return value of -1 in case an error was sensed. The error might consist of a zero in the denominator as in 3/0 or an error in form as in 4a/5 or 4%5. Both the input and output function should take a single pointer to your data structure from part a as a parameter.

(f) Combine your functions from part b through e to write a program that will perform rational number arithmetic for the user. The user should be allowed to enter any number of problems, and the program should output the answer in lowest terms.