C Brain Teasers: Exercise Your Mind/

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Discussion: More Simple

Discussion: More Simple

Execute the code to understand the output and gain insights into simplifying a fraction using C.

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Run the code

Now, it's time to execute the code and observe the output.

#include <stdio.h>

int main()
{
  int n, d, larger, smaller, diff;
  
  printf("Enter a fraction (nn/nn): ");
  scanf("%d/%d", &n, &d);

  // Check if the denominator is zero
  if (d == 0)
  {
    printf("Error: Denominator cannot be zero.\n");
    return 1;  // Exit the program with an error code
  }

  printf("%d/%d = ", n, d);
  larger = n > d ? n : d;
  smaller = n < d ? n : d;
  diff = larger - smaller;

  while (diff != larger)
  {
    larger = smaller > diff ? smaller : diff;
    smaller = smaller == larger ? diff : smaller;
    diff = larger - smaller;
  }

  if (diff > 1)
    printf("%d/%d\n", n / diff, d / diff);
  else
    printf("%d/%d\n", n, d);

  return 0;
}
C code for the given puzzle

Understanding the output

The code requires that you input two integers in the form of a fraction, such as 21/63. Here's the output:

Enter a fraction (nn/nn):
21/63 = 1/3
Code output

The fraction is reduced—simplified—if it can be. When the fraction can’t be simplified, the original fraction is returned as output.

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