Okay, to make a green dinosaur we use a ratio of 3:7. That’s three yellow dinosaurs for every seven blue. Smashing. To help think about this as a fraction, we need to take a look at them all together.

Revise how to work out equivalent ratios and simplify ratios by dividing both sides by the highest common factor. Test yourself with practice questions and a game. NEW: Ratio and fractions, and ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...