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Add the rational numbers $− 2 5 and 34$ . The answer is:

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720

721

722

723

answer is A.

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Detailed Solution

Given 2 rational numbers

− 2 5 and 34

.
L.C.M of 5 and 4 = 20.
Making the denominator 20 of both rational numbers,

= − 2 × 4 5 × 4 and 3 × 5 4 × 5 = − 8 20 and 1520

Now adding both,

= − 8 20 + 1520 = − 8 + 15 20 = 720

The answer is

720

.
Hence, option 1 is correct.

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