Question

Which of the following is not a rational number?
i) 1
ii) 0
iii) 3/(-2)
iv) 5/0

Answer 1

5/0 is not a rational number...

Because rational numbers are the numbers in the form of p/q where , q≠0

but in 5/0 q=0 , hence it is not a rational number

Answer 2

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All numbers Are rational except iv) 5/0

as any number divided by zero is not defined.

also a number is rational if a/b, b is not equ to zero

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