Dear Friend,
Unable to understand why you want to divide EL month wise. If you divide it would be 1.25 per month, Fortunately the quantum of CL is 12 if it is 9 then it would be .75 day per month. If you are HR professional understand what is the leave eligibility of the employee as per your Company leave rule or any document related to Leave. In most of the companies casual leave can be availed 1/2 day to 3 days maximum in a month, intervening holidays / weekly offs are going to be part of leave. No employee can avail more than 50% of casual leaves before June 30th and remaining after 1st July of every year. CL can not be clubbed with any other type of leave. Balance CLs are neither en-cashed nor carry forward. CL to be availed with prior permission / intimation and in extra-ordinary cases the employee to communicate to his immediate superior over phone or by other means and should get approved on his return for duty failing which it shall be presumed that the employee is absent on that particular / all the days where he is away from duty and suitable disciplinary action shall be initiated.
As far as EL is concerned a maximum of 3 times employee can avail and balance leaves can be en-cashed at the time of his separation from his services. In general granting a minimum of 4 days is the practice across industries, 15 days advance permission is required and this varies industry to industry. Basing on the exigencies the employee is allowed to avail the total number of ELs to his credit. Balance ELs can be carry forward. Intervening Holidays, Weekly offs are not going to be part of EL. In some organizations EL en-cashment will be available.
All the above are general and it varies from Industry to industry basing on their rules, policies, understandings & agreements etc.,
Hope you are clear.
Regards
Kamesh