6/20 = 30%
A fraction like 6/20 can show up when 6 out of 20 students choose the same lunch option, team, or school activity. It means that 30% of the group shares that choice.
You can picture 6/20 as about three out of every ten items. On a group of 20 objects, imagine marking 6 of them; that is a little less than one-third of the whole group.
A common mistake is thinking 6/20 is close to one-half because both numbers are fairly large. The important comparison is between the number chosen and the total, so 6 out of 20 is less than half.