Is it obligatory to fast the five consecutive days that I missed due to illness, or can I fast them non-consecutively?

The imams have agreed that what is obligatory in making up for Ramadan is to fast a number of days equal to the days missed, based on the Almighty's saying: ﴿And whoever is ill or on a journey – then an equal number of other days.﴾ There is no condition for these days to be consecutive; it is permissible to fast them consecutively or separately.