If √ 1 + 27/169) = (1 + N/13). then N equals?

√1 + 27/169 = (1 + N/13)
∴ √196/169 = (1 + N/13)
⇒ 14/13 = (1 + N/13)
⇒ N/13 = (14/13 - 1 ) = 1/13
∴ N = 1