In adding and subtracting fractions with unlike denominators, you have to get a least common denominator which is exactly like the least common multiple it just so happens to be in the denominator.

In this video, we provide essential "math help" by explaining how to simplify complex fractions, focusing on three common types you'll encounter. This "math tutorial" will show you how to use the "lcd ...

Fractions are the basis for most higher-level mathematics. Students need to master the numerical values in earlier grades to tackle topics like algebra later. There’s only one hitch: Fractions can ...