so an attack like Flame Strike does 4d6 Fire and 4d6 Radiant damage, for playing here on the play by post boards would you do like this?

Attack: 11 Damage: 24 and just divide the fire and radiant damage equally or would I do this instead

Attack: 13 Damage: 15 Fire

Attack: 8 Damage: Unable to parse dice roll. Radiant 

Divide the types because some creatures are resistant to one type or the other type.

Also, Flame Strike does not require a spell attack roll, but DEX saves from the targets. So, just roll 4d6 twice, one for fire damage, the other for radiant.

Well just trying to get used to how dice roller works on these bords