Algebrarules.com

The most useful rules of basic algebra,
free, simple, & intuitively organized
X

Howdy! Here are a few very handy rules of algebra. These basic rules are useful for everything from figuring out your gas mileage to acing your next math test — or even solving equations from the far reaches of theoretical physics. Happy calculating!

Algebra Rule 4

Dividing the denominator equals multiplying the numerator

$${a \over ({b \over c})} = {ac \over b}$$
Description:

In the same fashion as the above rule, dividing the denominator of a fraction has the same effect as multiplying the numerator

$${1 \over ({6 \over 2})} = {1 \over 3} = {(1*2) \over 6}$$
« Previous Rule Next Rule »