Fraction Theory


This chapter builds the skills needed to perform basic arithmetic with fractions. Numerical factoring, multiples, divisibility, and prime numbers are reviewed and then used to find greatest common factors and least common multiples.  These skills are applied to renaming fractions. The chapter ends with a discussion of rational numbers.

What you can expect to learn

After completing Chapter 4 you should be able to

  1. Analyze rational numbers.
  2. Find the greatest common factor (GCF) and least common multiple (LCM) of numbers.
  3. Convert rational numbers between fractional and decimal forms.
  4. Solve real-world problems using the greatest common factor and least common multiple.
  5. Analyze the design of prime and composite numbers.
Activity List