In this section you'll find study materials for pre-algebra help. Use the links below to find the area of pre-algebra you're looking for help with. Each study guide comes complete with an explanation, example problems, and practice problems with solutions to help you learn pre-algebra.
Finding Common Denominators
In order to add or subtract two or more fractions, they must have the same denominator. This denominator is called a common denominator . For any two or more fractions, there are many common ...
Multiplication of Mixed Numbers
Multiplying mixed numbers is similar to multiplying fractions.
To multiply two or more mixed numbers, first change the mixed numbers to improper fractions and then follow the ...
Division of Fractions
When dividing fractions, it is necessary to use the reciprocal of a fraction. To find the reciprocal of a fraction, interchange the numerator and the denominator. For example, the reciprocal of