The ratio for cups to teaspoon is 2/3 : 1/2
If we want to make it a unit rate (a ratio with 1 as the denominator), we need to multiply 1/2 by 2.
To ensure the ratio remains equal, we would also multiply 2/3 by 2.
The ratio becomes 1 1/3 : 1
Hope this helps! Have a great day :)