What fraction of the days of the week contains the letter r and s?

Well, let's take a moment to appreciate the beauty of the days of the week. Out of the seven days, we have "Thursday" and "Saturday" that contain both the letters "r" and "s." So, that's 2 out of 7 days, which simplifies to the fraction 2/7. Remember, every day is a chance to find joy in the little things around you.