0.1+0.1+0.1 gives 0.30000...4

Question

Does anyone know why does happen in Python, tried 0.1+0.1+0.1+0.1 , it gives 0.4 tried it till 0.7.

Why is that like that
https://code.sololearn.com/cZ1k2oFSeWL2/?ref=app

Answer 1

https://www.sololearn.com/Discuss/2018392/?ref=app

Answer 2

Michael thanks man