Chan has three different buckets.
-The volume of the red bucket is 2 1/6 liters.
-The volume of the blue bucket is
2 2/6 liters.
-The volume of the green bucket is 10 liters.
Chan fills both the red and blue buckets completely with water.
She pours all of the water from both buckets into the green bucket.

How many more liters of water does she need to fill the green bucket?
Show how you found the answer. Type your answer in the box below.​