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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
This is the most naive solution, so if you use this and gauge performance based on this solution this kata would be 7kyu ;-)
I can't accept an issue if you don't say: the language, the input.
Nevertheless after looking at your profile I think the language is Python. There is no error in this test:
test.assert_equals(sum_fracts(...), [79677895891146625, 14949283383840498])Look at the top of the page and see how many guys passed the Python kata. If there was an error some guys would have already seen it.
What do you mean by "I believe that one of them is not simplified." Which one? You believe or you have verified?
"Chorando se foi quem um dia so me fez chorar..." :)