Mr. Holms used \( \frac{4}{5} \) of a carton of orange juice. He used equal amounts of the leftover juice for 2 servings. What fraction of the whole carton of juice did he use for each serving?

1. Mr. Holms used \( \frac{4}{5} \) of the carton, so the leftover juice is \[ 1 - \frac{4}{5} = \frac{1}{5}. \] 2. The leftover juice, \( \frac{1}{5} \), was divided equally into 2 servings. Therefore, each serving used \[ \frac{1}{5} \times \frac{1}{2} = \frac{1}{10}. \] Thus, each serving contained \( \frac{1}{10} \) of the whole carton of juice.