Guides
Ratio Guides
Clear, worked-example guides for the ratio problems people actually run into, from homework proportions to resizing photos and mixing fuel.
Mixing Ratios Made Easy: Concrete, Epoxy, 2-Stroke Fuel and Cleaning Solutions
What does 50:1 actually mean? Turn any mixing ratio into real millilitres, litres and buckets, with quick reference tables.
How to Resize an Image Without Distorting It: A Practical Guide to Aspect Ratios
Find an image's aspect ratio, calculate new dimensions, and crop to 16:9, 1:1 or 4:5 without stretching.
How to Solve Proportions: The Cross-Multiplication Method Explained
The one technique that solves almost every A:B = C:D problem, with five worked examples and the mistakes to avoid.