Find the value of 1a+1b\frac{1}{a} + \frac{1}{b}a1+b1 if a+b=6a + b = 6a+b=6 and ab=8ab = 8ab=8.
34\frac{3}{4}43
38\frac{3}{8}83
68\frac{6}{8}86
12\frac{1}{2}21