Irene R. answered 11/23/19
Senior Mechanical Engineer with 13+ years of Teaching Experience
Since 2 2/3 quarts of lemonade needs 2/3 cup of sugar, we can determine amount needed to make one quart by dividing 2/3 by 2 and 2/3.
Recall that 2 2/3 is equal to 8/3 as an improper fraction. Then 2/3 divided by 8/3 is:
2/3 * 3/8 (the reciprocal of 8/3)= 2/8 or 1/4
Therefore, you would need 1/4 cup of sugar for 1 quart of lemonade.