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Choose the property/ies of rational number.

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p q = p × r q × r

p q ≠ p × r q × r

p q = p r q a r ≠ a

p q ≠ p r q a r = a

answer is A.

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Detailed Solution

As it is asked to choose the properties of rational number, we have
A number which is written in the form of

p q

is called the rational number.
If a rational number is multiplied by the same number both numerator and denominator, it remains the same.
Let

p q

is a rational number and r is any non zero integer,
then

p q = p × r q × r

If we multiply both numerator and denominator by non zero number then its remain unchanged.
So, the correct option is 1.

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