Large barrel: 5L small barrel: 1500ml a large barrel of oil can fill () small bottles

Large barrel: 5L small barrel: 1500ml a large barrel of oil can fill () small bottles

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A small bottle of purified water is 20 / 11 liters, which is equivalent to 100 / 3 of a big bucket of purified water?

（20/11）÷（100/3）=55/3

Class 5 (1) provided the athletes with drinking water, and prepared 19 liter buckets of water to be filled into 0.55 liter small bottles. How many bottles can be filled in all, and there are still some left
How many liters have not been loaded? Please list the formula (can't be solved by equation)

19 ÷ 0.55 = 34 0.3
A total of 34 bottles can be filled, with 0.3 liters left