How to videos for Multiplication and Division of Mixed numerals are posted in my blog archive.
Click on the arrow beside the 2010, then click on the arrow beside December...you will see the 2 videos over x and / fractions.
If you go to the right side of my blog under the archived posts, you can find how to videos for SUBTRACTION,MULTIPLICATION AND DIVISION OF FRACTIONS.
Look Under December and November 2010.