Ratios are really useful when mixing paints for art projects! Here’s how I use them:

1. Color Mixing: To make a certain shade, I mix colors in a ratio. For example, I mix $3$ parts red with $1$ part blue to make purple.

2. Scaling Up: If I need more paint, I can change the ratio. For instance, I can go from $1$ part red to $2$ parts blue, and scale it up to $5$ parts red to $10$ parts blue.

3. Consistency: By keeping the same ratio, I make sure my colors look the same in different pieces of art.

Using ratios really helps improve my artwork!