Final answer:
Ben needs a total of 11/12 cup of flour (the sum of 2/3 cup of bleached flour and 1/4 cup of wheat flour) to make waffles for his friends.
Step-by-step explanation:
To find the total amount of flour needed for Ben's waffle recipe, we need to add the two types of flour together. The recipe calls for 2/3 cup of bleached flour and 1/4 cup of wheat flour. To add these measurements, we need a common denominator, which in this case is 12:
- Convert 2/3 cup to 8/12 cup (because 2/3 multiplied by 4/4 equals 8/12).
- Convert 1/4 cup to 3/12 cup (because 1/4 multiplied by 3/3 equals 3/12).
- Add the two amounts together: 8/12 cup + 3/12 cup equals 11/12 cup.
Therefore, Ben needs a total of 11/12 cup of flour to make the waffles.