Table of Contents

## Introduction to Rational and Irrational Numbers

Rational and irrational numbers are two types of real numbers. Rational numbers are numbers that can be expressed as a quotient of two integers, while irrational numbers are numbers that cannot be expressed as a quotient of two integers.

Rational numbers can be further classified as either terminating or non-terminating. Terminating rational numbers are rational numbers that have a finite decimal representation, while non-terminating rational numbers have a decimal representation that goes on forever. Irrational numbers cannot be classified as terminating or non-terminating.

## Rational Numbers Definition:

Rational numbers are numbers that can be expressed as a ratio of two integers. In other words, rational numbers are numbers that can be written as a fraction where the numerator and denominator are both integers.

For example, the rational number 3/4 can be written as the fraction 3/4, or as the decimal 0.75. The rational number 5/6 can be written as the fraction 5/6, or as the decimal 0.833333…

## Definition

A type of investment account that allows investors to buy and sell stocks, bonds and other securities without a broker.

A self-directed brokerage account is a type of investment account that allows investors to buy and sell stocks, bonds and other securities without a broker. Investors in a self-directed brokerage account can research and trade securities on their own, or they can use a broker to help them with their investments.