Answer:

As everyone answered. You have "x" things and you want divide them into "y" equal parts, then size of each part is simply "x divided by y".

x = 5.20 m

y = 20 parts

x/y = 5.20 m/ 20 parts = 0.26 m/part

So each piece is 0.26 m in length. 26 cm, that is! Thanks.