So what exactly do you do when someone wants a 3rd, or a 5th or a 4th of that measure. AND! do you know where the whole “metric system” began? And Why?
It comes from the land of the people that eat snails. They’ve always been difficult to deal with and probably did it to be difficult.
To measure 1/5 of a cubic litre, you would get a container that is 1/5 of a litre in H/W/D and fill it up.
I heard that it began in ancient times. A centimeter is the width of a drop of water. 100 of them is a meter. It was a universal method of measurement thousands of years ago, and got "rediscovered" in modern times. Ancient tombs and other structures have lengths that exactly match meters in length, because the width of a drop of water never changes.
Hope you know I was kidding. A cubic centimeter contains 20 drops of water. So how many cubic centimeters of water flooded those towns? Metrics are fun.