totalul:
/___ ___/ ___ ___/ ___ ___/ ___ ___/
1zi /___ ___/ ------------------------------------
----------- restul
1/4
2zi /___ ___ ___/
-----------------
3/6
3zi 2/5=24m=24mx5:2=60m
60mx6:3=120m
120mx4=480m----total
480m:4=120m---1zi
480m-120m=360m-rest
3/6din360m=360m:6x3=180m---2zi
480m-120m-180m=180m 3zi