1 liter is equal to 33.814 fluid ounces, and 1 fifth is equal to 25.6 fluid ounces (1/5 of a 128-oz gallon, but 1/5 of 750ml is 150ml, 1 fifth of 1 liter),
1 liter = 1000 milliliters or 1000 ml,
1 fifth of 1 liter = 200 ml
To convert liters to fifths:
1 liter ÷ 0.2 liters/fifth = 5 fifths
There are 5 fifths in a liter.