Mathematics and Currency Units Lecture

Vocabulary and calculations based on lecture notes covering numerical factor reduction and currency unit representations.

Factor of reduction

The ratio calculated by dividing the original amount ($1200$) by the reduced amount ($0.12$), resulting in a factor of $10,000$.

$$1200 / 0.12$$

The mathematical operation performed to find a reduction factor, which equals $10,000$.

Yuan

The primary currency unit mentioned in the decimal representation problem involving $3$ yuan and $5$ fen.

Fen

The secondary currency unit mentioned in the decimal representation problem involving $3$ yuan and $5$ fen.