Solution:14111and 14 1/99 have the same numerator, and the smaller denominator is greater than the larger denominator.

That is, (1411-141/99) =141/99-/kloc-0.

Because14111>; 1 42/99 & lt； 1

Therefore, the absolute value of (1411-42/99) =1411-48.

So (14111141/99)+(141/. 1 1 1+ 14 1/ 1 1 1-42/99= 14 1/99-42/99= 1