Hailey was baking muffins for a party. The b,use berry muffin recipe required 2 1/4 cup of flour. The banana muffins require 1 3/4 cup of flour. Hailey had 6 cups of flour. How much flour will she have left after baking the muffins?

6 - 2 1/4 - 1 3/4 = ?