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Properties of Rational Numbers - The Role of 1

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For example : 
5 × 1 = 5 = 1 × 5 (Multiplication of 1 with a whole number) 
` -2/7 xx 1 = -2/7 ` 
You will find that when you multiply any rational number with 1, you get back the same rational number as the product. 
We say that 1 is the multiplicative identity for rational numbers. 

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