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The rational number $1 − 2$ with positive denominator is:

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− 1 2

− 1 3

− 1 4

− 1 5

answer is A.

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Detailed Solution

Given a rational number

1 − 2

.
Multiplying and dividing by -1,

= 1 × − 1 − 2 × − 1 = − 1 2

The number is

− 1 2

.
Therefore, option 1 is correct.

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