The decimal value in the leave entitlement is based on the settings that you have set in the leave type. Please follow the steps below to check:
Go to the Leave module.
Click Leave Module, Setup, Leave Type.
Click the Entitlement tab, and change the rounding method to Round to Whole.
Set up the rounding method according to your company and legislation policies as follows:
Fixed: System fixed at 2 decimal points
Half: Round to nearest half day
Quarter to Half: Round to half day with condition 0.25, otherwise round down
Round to whole: Round to whole value with condition 0.50, otherwise round down
Truncate to whole: There's no decimal point