Question

. A recipe calls for 2/3 cup of sugar for every 1/2 teaspoon of vanilla.

Answer 1

X= 4/3 = 1 1/3 cups.

Answer 2

1 1/3 cups per 1 teaspoon of vanilla
To get to 1 tbs we multiply 1/2 by 2
If you do that to one side you have to do it to the next
2/3 x 2 is 4/e which simplifies to 1 1/3