* There are 16 tablespoons in 1 cup.

* One-twentieth of a cup is the same as dividing a cup into 20 equal parts.

To find out how many tablespoons are in one-twentieth of a cup:

1. Divide the total tablespoons in a cup (16) by 20: 16 / 20 = 0.8

Therefore, one-twentieth of a cup is equal to 0.8 tablespoons.