Set this up as an equation. Kendra is making bread, but the recipe she’s using makes 4 loaves. She only wants to make one loaf. The changed recipe calls for 2 1/2 cups of flour and sugar combined. If the original recipe calls for 2 cups of sugar, find the amount of flour (in cups) in the original recipe.

Let x be the amount of flour in cups in the original recipe.

The amount of flour and sugar combined in the original recipe is 2x cups.
Since the changed recipe calls for 2 1/2 cups of flour and sugar combined, the equation is 2 1/2 = 2x.
Converting 2 1/2 to an improper fraction, we get 5/2 = 2x.
Dividing both sides of the equation by 2, we get (5/2) / 2 = x.
Thus, x = 5/4.
Therefore, the amount of flour in the original recipe is 5/4 cups. Answer: \boxed{\frac{5}{4}}.