This document contains notes from a math lesson on October 8, 2012. It includes: 1) An assignment on set 23 problems due on October 10th and a test #2 that needs to be signed. 2) A warm-up with 5 math problems on classifying triangles, calculating pages read in an hour, weighing boxes, finding a percentage, and simplifying an expression. 3) Information on multiplying and dividing fractions by cancelling terms and multiplying tops and bottoms. 4) 14 examples of simplifying fraction expressions and operations by multiplying, dividing, finding inverses and reciprocals.