a. Basic arithmetic is always involved in some manner in the solving of

pharmaceutical calculations. Perfecting basic mathematical functions will help to attain

the goal of 100 percent accuracy desired in pharmacy. Because of the need for 100

percent accuracy, no partial credit will be given for setting a problem up correctly if the

answer is incorrect. In pharmacy, the correct answer is more important than the

method.

b. Even if the operations performed in this lesson seem overly simple, do them

for practice/review. Most of the mistakes made by students taking this subcourse are

mistakes in basic mathematics.

Some drugs have dosages expressed in fractions of a grain. Some calculations

will involve fractions, and it is important for you to have the ability to perform all

mathematical procedures with fractions, whole numbers, and decimals.

a. A fraction consists of two parts: the number above the line is called the

NUMERATOR and the number below the line is called the DENOMINATOR.

Example: In the fraction "1/2," 1 is the NUMERATOR and 2 is the

DENOMINATOR.

1 NUMERATOR

2 DENOMINATOR

b.

Fill in the blanks:

(1)

What is the numerator in 3/4? ____________

The numerator in 3/4 is 3.

(2)

What is the numerator in 9/2? _____________

The numerator in 9/2 is 9.

MD0802

1-2

Integrated Publishing, Inc. |