How many cups are there in 16 teaspoons?

There are 3 teaspoons in 1 tablespoon. So, there are 16 teaspoons in 16/3 = 5⅓ tablespoons. There are 2 tablespoons in 1/4 cup. So, there are 5⅓ tablespoons in 5⅓/2 = 2⅔ cups. There are 4 cups in 1 gallon. So, there are 2⅔ cups in 2⅔/4 = 2/3 cup.