Question

x+y
___
1+xy
para x=1/2 e y=1/4

Answer 1

VAI DAR 3/2...........................

Answer 2

x + y / 1 + xy

1/2 + 1/4 / 1 + 1/2 . 1/4
4 + 2/8 / 1 + 1/8
6/8 / 9/8
6.8/8.9 = 48/72 = 2/3