What is a quarter plus a sixteen note equal?

A quarter note is equal to two eighth notes, while a sixteenth note is equal to half an eighth note. When you add a quarter note (2 eighths) to a sixteenth note (0.5 eighths), the total is 2.5 eighth notes, which is equivalent to two eighth notes and one sixteenth note. In terms of note values, this can be expressed as a quarter note tied to a sixteenth note.