Question

Which expression could Jane use to calculate the number of cups of flour she needs if a recipe calls for 2 1/3 cups of flour and she needs to make only half of the recipe?

A) 1 1/6 cups of flour
B) 1 1/2 cups of flour
C) 1 2/3 cups of flour
D) 1 3/4 cups of flour

Answer 1

To find the flour for half the recipe, Jane divides the original 2 1/3 cups by 2, resulting in 1 1/6 cups needed for half. Thus the correct option is A.

Explanation:

To find the amount of flour needed for half of the recipe, Jane can use the original quantity of flour (2 1/3 cups) and divide it by 2 since she's making only half of the recipe.

`\[ \text{Original flour needed} = 2 (1)/(3) \text{ cups} \]`

`\[ \text{Flour needed for half} = (2 (1)/(3))/(2) = 1 (1)/(6) \text{ cups} \]`

So, Jane needs 1 1/6 cups of flour to make half of the recipe, which aligns with option A. This calculation involves halving the original quantity of flour required, resulting in 1 1/6 cups for the reduced portion of the recipe. Therefore, selecting option A accurately represents the amount of flour needed for half of the original recipe calling for 2 1/3 cups.Thus the correct option is A.