{{ item.displayTitle }}

No history yet!

Student

Teacher

{{ item.displayTitle }}

{{ item.subject.displayTitle }}

{{ searchError }}

{{ courseTrack.displayTitle }} {{ statistics.percent }}% Sign in to view progress

{{ printedBook.courseTrack.name }} {{ printedBook.name }} The cross product property, also known as *cross-multiplication,* is a faster method to simplify an equation which has fractions on both sides of the equal sign. An example is $\frac{x}{5}=\frac{2}{7}.$

The procedure is that both sides are multiplied by $5$ and $7,$ the denominators of both sides. The result is that the denominators and multiplier undo each other.
With cross multiplication, these steps are done at the same time.