Basic to the understanding of unit conversion is the understanding of equivalence, the understanding of the multiplicative identity of 1, and how the two are related. For a review of these concepts, click on Review.
If you have forgotten how to manipulate fractions, visit Fractions for Adults on SOSMath for an in-depth review.
Review the following table (Webster's New World Dictionary, Second Edition, Simon and Schuster, 1982) of Standard Units of Conversion to see if you can create fractions that have a value of 1. You can click to examples following each table.
Example 1: Convert 180 square inches to square feet.
1.25 x 1 x 1 x 1 foot x 1 foot
Therefore, another way to work the problem is as follows:
= 1.25 x 1 x 1 square foot = 1.25 square feet
If you would like to review another example, click on Example.
If you would like to work some problems, click on Problems.
If you would like to go back to the table of contents, click on Table of Contents.
[Algebra] [Trigonometry] [Complex Variables]
Do you need more help? Please post your question on our S.O.S. Mathematics CyberBoard.
Author: Nancy Marcus