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Whole Numbers and Natural Numbers

Which of the ...

Question

Which of the following would always be a rational number, provided $a$ and $b$ are rational numbers?

A

a + b

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B

a - b

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C

a \times b

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D

\frac{a}{b}, b \neq 0

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Solution

The correct option is D $\frac{a}{b}, b \neq 0$

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