(2.3 + 1.5 +13.18+ 4.5 + 5.18 +1.3):2

Question

(2.3 + 1.5 +13.18+ 4.5 + 5.18 +1.3):2

Answer 1

2,3+1,5=3,8
3,8+13,18=16,98
16,98+4,5=21,48
21,48+5,18=26,66
26,66+1,3=27,96
27,96:2=13,98