Need help with this C program I have it almsot all completed

Need help with this C program. I have it almsot all completed. Option 1 asks the user to enter a fraction and then option 2 displays that fraction. option 3 sorts the fractions in ascending order, i figured out all the code for this however for option 4 i need to Calculate the Max, Min and Median fractions. I can\'t figure out what the code for it is. If the user selects option 4 before sorting the fractions, then a \"Please sort the values first\" should pop up.

#include <stdio.h>
#include <stdlib.h>

//Struct to hold fraction data
typedef struct fraction
{
   int numerator, denom;
}fraction;
double Calc_Frac(fraction b)
{
   return((double)b.numerator / b.denom);
}

int main()
{   fraction arrFraction[100];

   int i = 0;
       int j;
       int num = 1;
  
   while (num == 1)
   {
       int choice;
       printf(\"\ Press 1 to enter a fraction\ \");
       printf(\"Press 2 to view stored fractions\ \");
       printf(\"Press 3 to sort fractions\ \");
       printf(\"Press 4 to find min max median fraction\ \");

       scanf(\"%d\", &choice);

       if(choice == 1)
       {
           //Prompting user
           printf(\"\ Enter your fraction, numerator followed by denominator\ \");

           //Reading values from user
           scanf(\"%d %d\", &arrFraction[i].numerator, &arrFraction[i].denom);

           //Incrementing counter
           i++;
  
       }

       if (choice == 2) {
           printf(\"-------------------------\ \");
           for (j = 0; j < i; j++)
              
           {
               printf(\"%d %d/%d \ \", arrFraction[j].numerator/arrFraction[j].denom, arrFraction[j].numerator%arrFraction[j].denom, arrFraction[j].denom);
           }
           printf(\"\ -------------------------\ \ \");
       }
      
  
      
       if (choice == 3) {

           int min;
           fraction tmp;

           for (int k = 0; k < i; k++)
           {
               min = k;
               for (j = k + 1; j < i; j++)
               {
                   if (Calc_Frac(arrFraction[j]) < Calc_Frac(arrFraction[min]))
                   {
                       min = j;
                   }
               }
               tmp = arrFraction[k];
               arrFraction[k] = arrFraction[min];
               arrFraction[min] = tmp;
           }

       }
  

       if (choice == 4)
       {

       }

   }

   system(\"pause\");
   return(0);
}

Solution

if (choice == 4)
        {
            if(chosen3==1)
            {
                printf(\"Min fraction: %d/%d\",arrFraction[0].numerator,arrFraction[0].denom);
                printf(\"Max fraction: %d/%d\",arrFraction[i-1].numerator,arrFraction[i-1].denom);
                printf(\"Median fraction: %d/%d\",arrFraction[i/2].numerator,arrFraction[i/2].denom);
              
            }
            else
            {
                printf(\"Please sort the values first\");
            }

If array is already sorted,then min will be at index 0

max would be at last index

median will be at middle