14 ounces ... 10 1/2 = 21/2 teaspoons of sugar
1 ounce ... x teaspoons of sugar = ?
If you would like to know how much sugar is in one ounce of the drink, you can calculate this using the following steps:
14 * x = 21/2 * 1
14 * x = 21/2 /14
x = 21/2 / 14
x = 21/28
x = 3/4 teaspoon of sugar
The correct result would be 3/4 teaspoon of sugar.