[lucabetelci]

In the JSON response (after "And the response is the following.") it says that "(...) Since 1 (from 9.11) is greater than 0 (implicitly, as there's no second digit in 9.9), we can conclude that:\n\n$$9.11 > 9.9$$ (...)"

[davidt84]

It goes wrong a bit before that when it says:

"Compare the first digit after the decimal point of both numbers.

- For 9.11, the first digit after the decimal point is 1.

- For 9.9, the first digit after the decimal point is also 1."