## The Real Number System: Rational & Irrational Numbers

What are Rational Numbers? In mathematics, a rational number is any number that can be expressed as a fraction, or the quotient or fraction p/q of two integers, with the denominator q not equal to zero. Basically, numbers that CAN be written as a fraction, or terminating decimals, or predictable fractions like 1/3 Rational numbers can be categorized into … Read moreThe Real Number System: Rational & Irrational Numbers

## Finding the Least Common Multiple (LCM) using Prime Factorization

There are two methods to finding the LCM of two or more numbers. One method is to list out all the multiples of each number until we get a match. The other method is to use Prime Factorization.

## Absolute Value

Absolute Value is the distance a number has from zero. Opposite Numbers have the same absolute value. Also, distance is never mentioned as negative so the absolute value of numbers is always positive, even if the number is negative. For Example, the absolute value of 5 is 5.  The absolute value of its’ opposite -5 … Read moreAbsolute Value