Transcription of Rational Chapter 9 - NCERT
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Rational Chapter 9 - NCERT
Rational INTRODUCTIONYou began your study of numbers by counting objects around numbers used for this purpose were called counting numbers ornatural numbers. They are 1, 2, 3, 4, .. By including 0 to naturalnumbers, we got the whole numbers, , 0, 1, 2, 3, .. The negativesof natural numbers were then put together with whole numbers to makeup integers. Integers are .., 3, 2, 1, 0, 1, 2, 3, .. We, thus, extendedthe number system, from natural numbers to whole numbers and fromwhole numbers to were also introduced to fractions. These are numbers of the form numeratordenominator,where the numerator is either 0 or a positive integer and the denominator, a positive compared two fractions, found their equivalent forms and studied all the four basicoperations of addition, subtraction, multiplication and division on this Chapter , we shall extend the number system further.
9.6 RATIONAL NUMBERS IN STANDARD FORM Observe the rational numbers 3 5 5 8 2 7 7 11, , , − −. The denominators of these rational numbers are positive integers and 1 is the only common factor between the numerators and denominators. Further , the negative sign occurs only in the numerator . Such rational numbers are said to be in standard ...
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