Ratio- comparing two quantities with the same unit of measure
Proportion- two ratios set equal to each other
Ratio- simplify to simplest form. Ratios are fractions, which need to be put into simplest form. Sometimes, these ratios cannot be simplified, therefore it is already simplified no matter how high the numbers may be.
Proportion- cross multiply and solve as a double-sided equation.
This slide show goes through examples on how to solve proportions and ratios.