07/22/2026
🎉 Happy Pi Approximation Day! 🥧➗
Why do we celebrate July 22?
Because 22⁄7 is one of the best-known fractions used to approximate π (pi)—the special number that represents the relationship between a circle's circumference and its diameter. While π actually goes on forever (3.14159265...), 22⁄7 = 3.142857... is surprisingly close, making it a handy estimate that's been used in mathematics for centuries.
It's a fun reminder that in math, sometimes an estimate is exactly what you need—and understanding why it works is even more important than memorizing the number.
May your curiosity be as endless as the digits of π. 💙🔵