7.9×(1 1.6-1:1 1.19-1.15)+4 2.5:24

Question

7.9×(1 1.6-1:1 1.19-1.15)+4 2.5:24

Answer 1

(11.6 -  1 : 11.19 - 1.15)
 -1:11,19 ≈ -0.09
11.6 - (-0, 09)=11,6+0.09=11,69
11,69-1.15=10,54

7.9×10,54=83, 266
42,5:24=1,77

83, 266+1,77≈85