In this video I will show you how to simplify trigonometric expressions by multiplying by the reciprocal, lcd and ...

Over the past year, since I took over the common-core math beat, I’ve been thinking a lot about fractions. As I wrote in November, the Common Core State Standards for mathematics emphasize fractions ...

Learn how to simplify a complex fraction by multiplying by the LCD. In addition to simplifying the complex fraction we will ...