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Add the rational numbers - 4 and $12$ . The answer is:

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− 7 2

− 7 4

− 7 3

− 7 5

answer is A.

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Detailed Solution

Given 2 rational numbers - 4 and

12

.
L.C.M of 1 and 2 = 2.
Making the denominator 2 of both rational numbers,

= − 4 × 2 1 × 2 and 1 × 1 2 × 1 = − 8 2 and 12

Now adding both,

= − 8 2 + 12 = − 8 + 1 2 = − 7 2

The answer is

− 7 2

.
Hence, option 1 is correct.

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