$begingroup$ The fractions listed here come from the multiclassing regulations: when determining what amount of “multiclassed spellcaster” that you are, if you want to determine your spell slots, you'll want to increase your full amount in a few courses (like wizard), 50 % your stage in other lessons (like paladin), https://juliuswnxac.pages10.com/dnd-most-used-spells-an-overview-53298553