To determine the fraction used to divide \( \frac{1}{3} \), we can consider a simple interpretation of division in terms of fractions.
When we divide a fraction by another fraction, it can be expressed as multiplying by the reciprocal. For example, to divide \( \frac{1}{3} \) by a fraction \( x \), you would perform the operation:
\[ \frac{1}{3} \div x = \frac{1}{3} \times \frac{1}{x} \]
In this case, \( \frac{1}{x} \) is the fraction used to divide \( \frac{1}{3} \).
If you're looking for a specific fraction to use as an example, you might choose \( \frac{1}{2} \). The division would look like this:
\[ \frac{1}{3} \div \frac{1}{2} = \frac{1}{3} \times 2 = \frac{2}{3} \]
So in this example, the fraction used to divide \( \frac{1}{3} \) is \( \frac{1}{2} \).
If you need to find a different specific fraction for a different context, please share more details!