Two math functions

Question

I am trying to convert temperature from F - C.
The math is: F - 32 * (5/9)
I tried that all on one line and can’t seem to get the code to run so I tried it on separate lines and using a variable for 5/9 and just outputs 0
https://code.sololearn.com/cvIL5b3B219V/?ref=app

Answer 1

Thats because 5/9 is an integer divison, which yields 0.
type 5/9.0 for example to convert it to double.

Answer 2

cool, thank you!

Answer 3

check out the solutions for the "the c programming language" book, by ritchie et al.