There are 366 days in a leap year
In a week there are 7 days, so total no of days= 7*52=364 days.
Here 52 represents number of weeks.
Now last two days can be combination of two days say like Monday and Tuesday or Tuesday and Wednesday and so on.
So in total 7 combinations are possible.
Out of there can be 3 combinations containing Thursday or Friday.
Hence, the probability is 3/7.
Hence the answer is 3/7