The Quarter of a Quarter in My Left Foot | Math in Movies

In this scene, Christy Brown's siblings are doing maths. “What’s 25% of a quarter? That’s stupid. You can’t have a quarter of a quarter” says his father. Christy tries to write something on his slate, but they can’t make sense of it. He can’t quite form the 6 properly, but it’s the right answer, 1/16.