Walt is mixing fruit punch for a party. He combines 1 gallon 2 quarts 3 pints of orange juice 1 gallon 3 quarts 7 pints of pineapple juice and 1 gallon 3 quarts 3 pints of ginger ale. What is the total liquid measure of the punch

So he's mixing:

1 gallon 2 quarts 3 pints of orange juice

1 gallon 3 quarts 7 pints of pineapple juice and

1 gallon 3 quarts 3 pints of ginger ale

that's:

3 gallons 8 quarts and 13 pints.

2 pints make a quart, so 13 pints make 6 quarts and 1 pint, so actually it's:

3 gallons 8+6=14 quarts and 1 pint.

4 quarts are a gallon, and 14 quarts are 3 gallons 2 quarts, so the final answer is:

3+3=6 gallons 2 quarts and 1 pint.