3/80 = 3.75%
A value like 3.75% can show up as a small fee, a savings rate, or the share of people in a group who choose a certain option. In everyday situations, it helps describe an amount that matters but is still a small part of the whole.
To picture it quickly, think of about 4 out of every 100 things. It is a little less than 1 in 25, so it is small but not tiny.
A common mistake is reading 3.75% as 37.5%, which is ten times larger. Keep in mind that 3.75% is less than 4% and far below half of the whole.