A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Hi MaxBobek,
Thank you for posting in this community and I am sorry for this inconvenience caused to you.
May I know have you tried to use CTRL+ “= “ or **CTRL+ Shift + “=”**in Math Assistant in OneNote?
For your information: Solve math equations with Math Assistant in OneNote (microsoft.com)
Moreover, you may try to use OneNote 2016 to see the results.
Best Regards,
May