**Just in case you're wondering why we're doing what we're doing...**Click here to read the 5th Grade Common Core Standard for fractions

**Adding and Subtracting Fractions**

When you add or subtract fractions, you MUST have a lowest common denominator (LCD).

Using the notes you took in class, define the Zig-Zag Method to determine the lowest common denominator.

Using your notes, define the Multiplication Method of finding the lowest common denominator.