Key legal question
What invalidity pension fraction corresponds to a 45.5% invalidity rate?
Extracted holding
A 45.5% invalidity rate entitles the insured to a quarter invalidity pension, not a half pension.
Extracted reasoning
A half pension requires a 50% invalidity rate under Art. 28(2) LAI. Since both courts used the same calculation basis and reached 45.5%, the cantonal court misapplied federal law by granting a half pension.