a recipe for chocolate chip cookies calls for 1 1/2 cups of flower. If you are making 2 1/3 recipes, how many cups of flower are needed?

1 1/2 = 3/2

2 1/3 = 7/3

3/2 * 7/3 = 21/6 = 3 3/5 = 3 1/2 cups

To find out how many cups of flour are needed for 2 1/3 recipes of chocolate chip cookies, you will need to multiply the amount of flour required for one recipe by the number of recipes.

Given that one recipe calls for 1 1/2 cups of flour, we can calculate the total amount of flour needed for one recipe:

1 1/2 cups = 3/2 cups

To find the amount of flour needed for 2 1/3 recipes, we multiply the flour required for one recipe by 2 1/3:

(3/2 cups per recipe) * (2 1/3 recipes) = (3/2) * (7/3) = (3 * 7) / (2 * 3) = 21/6 = 3 1/2 cups

Therefore, 2 1/3 recipes of chocolate chip cookies would require 3 1/2 cups of flour.

To find out how many cups of flour are needed for 2 1/3 recipes, you need to multiply the amount of flour needed for one recipe (1 1/2 cups) by the number of recipes you are making (2 1/3).

First, let's convert the mixed number into a decimal. We can do this by dividing the whole number (2) by the denominator (3), and then adding the numerator (1) to the result:

2 ÷ 3 + 1 = 0.6666... + 1 = 1.6666...

Now, we multiply the amount of flour needed for one recipe (1 1/2 cups) by the decimal value:

1 1/2 cups × 1.6666... = 1.5 cups × 1.6666... = 2.5 cups

Therefore, if you are making 2 1/3 recipes, you will need 2.5 cups of flour.