You can divide 79677895891146625 by 6 and you get 13279649315191104 with a remainder of 1!
The fraction 79677895891146625 / 14949283383840498 is not reducible, and slightly different from 13279649315191104 / 2491547230640083
So your solution is wrong.
I see now why it is wrong. Your code (like the code of user pr0ace1) seems to use the floating point number division operator / instead of // for integer division since python version 3.
In python versions 2.x / could mean integer division, but this has been changed incompatibly since version 3.
You must calculate with integers, not floats.