Question

Joanne is baking bread which calls for 3 3/2 cups of flour. For each cup of flour, 5/8 cups of water need to be used as well. How much water does the recipe use?

Answer 1

Joanne will need to use 10 5/8 cups of water for the recipe.

Explanation:

Step 1: Convert the mixed number to an improper fraction.

Joanne needs 3 3/2 cups of flour. To convert this to an improper fraction, we multiply the whole number (3) by the denominator (2) and add the numerator (3).

3 * 2 + 3 = 6 + 3 = 9

So, Joanne needs 9/2 cups of flour.

Step 2: Calculate the amount of water needed for each cup of flour.

For each cup of flour, 5/8 cups of water are needed. Since Joanne needs 9/2 cups of flour, we can set up a proportion to find the amount of water needed.

(5/8) * (9/2)

Step 3: Multiply the fractions.

To multiply fractions, we multiply the numerators and the denominators.

(5 * 9) / (8 * 2) = 45 / 16

So, Joanne needs 45/16 or 2 13/16 cups of water for the recipe.