If allowed, I just add an extra option using the original “22.4 mins” format:
---
duration: 22.4 mins
---
```dataview
TABLE name AS "Name", duration.minutes AS "⏱", ...
```
If your values in duration are only in minutes, then you can use the duration.minutes to get only minutes. If you use duration.hours you get the conversion of the input value (in minutes) to hours: 22.4 mins → 0.3733