The 100th league goal of Mauro Icardi's career couldn't stop Inter's winless run in Serie A stretching to five games, as a late Giovanni Simeone equaliser denied Luciano Spalletti's side a scrappy win.
The result means that Inter could drop down to fourth at the end of the weekend, with Napoli and Juventus moving closer to creating a true two-horse title race.
Fiorentina started the game by far the brighter of the two sides, young forward Federico Chiesa missing one golden chance when he swiped at a loose ball first time - oblivious of his clear path to goal.