55 + 34 + 31 + 27 + 21 + 21 + 20 + 17 + 15 + 15 = 256
34
-13 + 34 = 21
83+34
It is -34 + v.
307 i think
80+30
It's Fibonacci's
3.3714
That's the beginning of the Fibonacci series.
24+24+34+34 = 116
21/34. 21 and 34 have no common factors (21=3x7, 34=2x17) so it's impossible to reduce it any further.