Willow is starting a big business for her class. A bake sale!!! Rachel, Lana, Sara, and Josephine are also participating!!! Rachel needs 1/2 more cups of yeast to make the challah. Lana needs 1 1/2 cups more flour to make the fortune cookies. Sara needs 1/3 more cups of water to make Mysore Pak. Josephine quits. How many more materials do they need in all?