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A number of the form p/q where q not equals to zero is called a rational numbers.
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P may be zero or may not.
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P and q are positive /negative integers.
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It denotes the part of a quantity or a number with other quantity or number.
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For example 1/2 , -2/-3 ,10/-5 etc.
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The set of rational numbers is denoted by Q.
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A number which is not rational is called a irrational number.
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The set of all rational and irrational number is called real number, denoted by R.
