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Are all Decimal Expansions Fractions?
Last updated at March 22, 2023 by Teachoo
Chapter 1 Class 9 Number Systems
Concept wise
- Rational numbers - Definition
- Finding rational number between two numbers
- Irrational Numbers
- Simplifying real numbers
- Rationalising
- Laws of exponents
-
Finding decimal expansion
- Expressing decimal in p/q
- Classifiying rational/irrational
- Finding irrational numbers b/w two numbers
- Real numbers on a number line
Transcript
Are all Decimal Expansions Fractions? No What about 𝝅? 𝝅 = 3.1415926535897932384626433832795… Hence, There are 3 types of Decimal Expansion Terminating Non-Terminating Repeating Non-Terminating Non-Repeating Can be written in fraction So, Rational Number Cannot be written in fraction So, Irrational Number To Summarise Decimal Expansion Terminating Non-Terminating Non-Terminating Repeating Non-Terminating Non-Repeating Rational Irrational
