1. Multiply by a ONE IN DISGUISE!
Equivalent Fractions
A ONE IN DISGUISE is:
To make equivalent (equal) fractions:
Reduce Fractions
These mean the same thing: “Reduce” “Simplify” “Write in Lowest Terms”
To reduce fractions:
Any number divided by itself (or over itself)
Examples:
Multiply by a ONE IN DISGUISE!
Divide by a ONE IN DISGUISE!
This may take more than one step unless you can find the GCF!

2. Factor the numerator and denominator (like prime factorization).
Simplify.
Another way to simplify fractions:
This method will help you simplify fractions with variables.
Factor the numerator and denominator (like prime factorization).
Then cancel out any common factors.
For example: