To find out how much flour is needed for a whole loaf of bread, we can set up a proportion based on the given information.
We know that:
- \(2\) cups of flour make \(\frac{1}{3}\) of a loaf of bread.
To find out how much flour is needed for \(1\) whole loaf of bread, we can use the following relationship:
\[ \text{Flour for 1 loaf} = \text{Flour for } \frac{1}{3} \text{ loaf} \times \text{Number of } \frac{1}{3} \text{ loaves in 1 loaf} \]
Since \(1\) whole loaf contains \(3\) parts of \(\frac{1}{3}\) of a loaf, we have:
\[ \text{Flour for 1 loaf} = 2 \text{ cups} \times 3 = 6 \text{ cups} \]
Therefore, \(6\) cups of flour are needed for \(1\) whole loaf of bread.