When a valuable fraction goes missing, George Cornelius Factor (a.k.a. GCF) vows to track it down. Knowing that the villainous Dr. Brok likes to disguise his ill-begotten fractions, GCF invents a Reducer—a tool that strips away the disguise, reducing the fraction and revealing its true form. Equal parts of action and humor add up to a wholly entertaining introduction to simplifying fractions.
- Available now
- Most popular
- Always available audiobooks
- All Fiction
- All Nonfiction
- New audiobooks
- See all
- Battle of the Books - K to 2nd
- Battle of the Books - 3rd to 4th
- Battle of the Books - 5th to 6th
- Battle of the Books - Middle School
- Battle of the Books - High School
- See all