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Definition--Rationals and Radicals--Rational Numbers

Rational Numbers

Rational Numbers

Topic

Rationals and Radicals

Definition

Rational numbers are numbers that can be expressed as a ratio of two integers, where the denominator is not zero.

Description

Rational Numbers are a cornerstone concept in the study of Rational Numbers, Expressions, Equations, and Functions. These numbers can be written as fractions, where both the numerator and denominator are integers, and the denominator is not zero. For example, 1/2, 3/4, and -5/3 are all rational numbers. Rational numbers include all integers, as they can be expressed as fractions with a denominator of 1, and all terminating or repeating decimals. Understanding rational numbers is crucial for various mathematical operations and real-world applications. They form the basis for many calculations in finance, science, and engineering. Rational numbers have several important properties, such as closure under addition, subtraction, multiplication, and division (except division by zero). This means that when you perform these operations on rational numbers, the result is always another rational number. This property is particularly useful in solving equations and simplifying expressions. Rational numbers also play a significant role in more advanced mathematical concepts, such as limits in calculus and algebraic structures in abstract algebra. By mastering rational numbers, students develop a strong foundation for understanding more complex mathematical ideas and problem-solving techniques. In practical applications, rational numbers are used in measurements, proportions, and ratios, making them essential in fields like architecture, cooking, and data analysis.

For a complete collection of terms related to polynomials click on this link: Rationals and Radicals Collection

Common Core Standards CCSS.MATH.CONTENT.HSA.REI.A.2, CCSS.MATH.CONTENT.HSN.RN.A.1, CCSS.MATH.CONTENT.HSF.IF.C.7
Grade Range 8 - 12
Curriculum Nodes Algebra
    • Rational Expressions and Functions
        • Rational Functions and Equations
Copyright Year 2013
Keywords radicals, radical expressions, rational numbers, rational expressions, definitions, glossary term, rational functions