Ian makes 7 1/2 quarts of fruit punch using 3 different juices. The juices he used are listed ... 3 and 1/4 quarts of blueberry juice and 1 and 1/3 of pineapple juice ... what is "X" quarts of watermelon juice equal to?

X equals 2 11/12 quarts watermelon juice. Start with 7 1/2 quarts - 3 1/4 quarts blueberry juice equals 4 1/4 quarts. To subtract 1 1/3 quarts of pineapple juice you must convert 4 1/4 to its equivalent 4 3/12 and 1 1/3 to its equivalent 1 4/12. 4 3/12 will become 3 15/12 when you borrow. Subtract 1 4/12 and the result is 2 11/12.