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The number that should be added to $− 5 9$ to get 1 is:

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147

149

148

1410

answer is B.

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Detailed Solution

Given a rational number

− 5 9

.
Let the number required = x,
According to the question,

− 5 9 + x = 1 x = 11 − − 5 9

L.C.M of 9 and 1 = 9.
Taking L.C.M of denominator,

x = 9 + 5 9 x = 149

The number is

149

.
Hence, option 2 is correct.

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