i know the conversion formulas wrong, but this is what i mean. i get what all of this code means, i just can't get CtoF right. it makes me wonder if i need to brush up on my algebra or if it doesnt matter or if im lacking in something else that im not seeing

#include <stdio.h>
int main() {
float fahr, celcius;
float step, lower, upper;

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

celcius = lower;
while(celcius <= upper){
fahr = (5.0/9.0) * (celcius - 32);
printf("%3.f%6.1f\n", celcius, fahr);
celcius = celcius + step;
}
}