Python calculation results problems

Question

Why does print(456/10**2) output 4.56
But print((456/10**2)*100) output 455.999999999994
Shouldn’t it be 456?
Thank you :)

Answer 1

1. exponentiation calculated firstly, then division and multiplication
2. processor calculats floating point expressions inaccurately

Answer 2

But why though? Is it a flaw in python or just an online compiler mistake?