Ratios are often slightly misunderstood by new pharmacy tech students. However, once you get them, they are really quite simple. The big hangup for most people is thinking they are the same as percentage fractions.
In most cases where fractions are used in math, they represent a percent that could also be expressed in decimal format.
Ratios, on the other hand, are normally used to explain different "parts" that make up a whole.
To get started, watch this brief Video tutorial
A prime example of using Ratio to solve a math problem is in Free practice quiz #6, Question #8.
Question Which of the following quantities would be correct for this formula: