Careful with arithmetic operation of dissimilar data types

Check the following prog:

main()
{
  float result;
  result =50/100;
  printf("%f",result);
}

what is the output?

The output is not like this: 0.50000

The output is 0.000000

because
int/int = int
so change the program to

main()
{
  float result;
  result=50/100.0;
  printf("%f",result);
}

the above programm is (int/float)
so the output is now 0.500000

conclusion:

int/int = int
int/float = float
float/int = float
float/float = float

The above table can be summarized as: integer division takes place only when both elements are integers.