Q.Create a four-function calculator for fractions. (See Exercise 9 in Chapter 2, and Exercise 4 in this chapter.) Here are the formulas for the four arithmetic operations applied to fractions:

                                                              i.      Addition: a/b + c/d = (a*d + b*c) / (b*d)

                                                            ii.      Subtraction: a/b - c/d = (a*d - b*c) / (b*d)

                                                          iii.      Multiplication: a/b * c/d = (a*c) / (b*d)

                                                          iv.      Division: a/b / c/d = (a*d) / (b*c)

#include<stdio.h>

#include<conio.h>

#include<math.h>

float n1,d1,n2,d2,R,x=1;

char ch;

void main()

{

printf("****MENU****\n");

printf("+ for Addition\n");

printf("- for Subtraction\n");

printf("* for Multi[lication\n");

printf("/ for Division\n");

while(x!=0)

{

printf("\nFor first Fraction\n");

printf("Enter First number:");

scanf("%f",&n1);

printf("Enter second Number:");

scanf("%f",&d1);

printf("\nEnter the operator:");

ch=getche();

printf("\n\nFor Second Fraction\n");

printf("Enter First number:");

scanf("%f",&n2);

printf("Enter second Number:");

scanf("%f",&d2);

switch(ch)

{

  case'+':

{

 

printf("\n%.1f",(n1/d1)+(n2/d2));

break;

}

  case'-':

{

 printf("\n%.1f",(n1/d1)-(n2/d2));

break;

}

  case'*':

{ 

printf("\n%.1f",(n1/d1)*(n2/d2));

break;

}

  case'/':

{

  printf("\n%.1f",(n1/d1)/(n2/d2));

break;

}

  default:

 printf("\nINVALID OPERATOR");

}

printf("\nEnter any number>0 to continue and '0' to EXIT:");

scanf("%d",&x);

}

  getch();

}