it is 1 and 5 out of 8
4 + 5 -2 + 8 - 5 is = 10
8
58
8 plus 5/2 = 10.5
9 + 6 + 9 + 6 + 9 + 8 + 5 + 2 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 99
13 plus -8 = 5 ... and -18 plus -2 = -20.
2/5 + 8/5 = 10/5 = 2
It is: -9+8+(-5)+3+1 = -2
5 x 8 + 2 = 42
2/8 plus 3/8 = 5/8
5+5-2=8
5/8 + 2/8 = 56/64 or 7/8