What is half of 2 3/4 cups is 1 3/8 cups. To find half of a fraction, divide the numerator (top number) by 2 while keeping the denominator (bottom number) the same. In this case, half of 2 is 1, and half of 3/4 is 3/8. So, when combined, it becomes 1 3/8 cups. This measurement is useful for recipes or when you need to halve a quantity for cooking or baking.