Free public beta until December 4, 2026: every course is open, no card needed. After that, the first chapter of each course stays free and full access is a one-time $39 ($19 for up to 100 founding members chosen for helpful feedback). Your progress is kept. How the beta works

numerator

The top number in a fraction — how many pieces you have.

In a fraction $\frac{a}{b}$ , the numerator is $a$ , the number on top. It counts how many of the fraction's equal-sized pieces are being taken.

Examples

In $\frac{3}{5}$ , the numerator is 3 — three pieces out of five.