Fractions are used in basic Pharmacy Tech Math and should be memorized in preparation for the PTCB and ExCPT exams. Here is a brief review of rules regarding fractions.

Add or Subtract :

2

1

+

5

3

✓ First find a common denominator, which means make the bottom number the same in both fractions.

✓ Let's use 15 as a common denominator and then adjust the numerators.

Most people initially get hung up on the Division of fractions and Look at the above example and ask "How can^{1}⁄_{2} be divided by^{1}⁄_{6} and equal 3?"

So, let's think about a large Pizza. Now envision half (^{1}⁄_{2}) of a large pizza sitting next to one with just one slice left (^{1}⁄_{6}). How many of those (^{1}⁄_{6}) slices would it take to equal the Half (^{1}⁄_{2}) of a pizza.

Some people use the wording "how many times will __ Go Into __." In this case it would be: how many times will one sixth go into one half.

The reason it seems wrong when you look at it is because only fractions behave this way and we usually use whole numbers.