To find an equivalent amount for \( \frac{2}{3} \) of a cup of flour, let's analyze the given options:
- \( \frac{3}{3} \) of a cup - This is equivalent to 1 cup.
- \( \frac{4}{6} \) of a cup - This simplifies to \( \frac{2}{3} \) (since \( 4 \div 2 = 2 \) and \( 6 \div 2 = 3 \)).
- \( \frac{1}{3} \) of a cup - This is one-third of a cup.
- \( \frac{5}{6} \) of a cup - This is not equivalent to \( \frac{2}{3} \).
- \( \frac{6}{5} \) of a cup - This is greater than 1 cup.
- \( \frac{3}{2} \) of a cup - This is also greater than 1 cup.
The correct equivalent amount of flour that is equal to \( \frac{2}{3} \) of a cup is:
- \( \frac{4}{6} \) of a cup.
So the answer is 4 sixths of a cup.