Two comparable loop but different results...help please

declaration of variables and start of program:

Code:

---

#include<stdio.h>

main()
{
        int fahr, celcius;
        int upper, lower, step;

        lower = 0;
        step = 20;
        upper = 300;

---

loop one:

Code:

---

printf("\n");

        for(celcius = lower; celcius <= upper; celcius = celcius + step)
        {
                fahr = 9 *(celcius) / 5 + 32;

                printf("%d\t%d\n", fahr, celcius);
        }

---

loop two:

Code:

---

        printf("\n");

        for(celcius = lower; celcius <= upper; celcius = celcius + step)
        {
                fahr = ((9/5) * celcius) + 32;

                printf("%d\t%d\n", fahr, celcius);
        }

---

the first executes fine and gives good results for converting from F to C.

the second executes fine but both fahr and celcius increment by 20.

the math should give the same results unless i am just not seeing the algebra error (very possible as it is kinda late here)

Code:

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fahr = ((9/5) * celcius) + 32;    // Integer division!

---

You sidestepped this is the first loop, but not the second.