1 / 6 + 1 / 24 + 1 / 60 + 1 / 120 =? Can it be simple?

1 / 6 + 1 / 24 + 1 / 60 + 1 / 120 =? Can it be simple?

It seems that there is only a common score. Fortunately, the least common multiple is 120
So we have to
20/120+5/120+2/120+1/120=28/120=7/30