Question

45+[(8:5-10:2) +(18:6-2)]

Answer 1

$45+[(8:5-10:2)+(18:6-2)]= 45+[(1,6-5)+(3-2)]= 45+(-3,4)+1= 45-3,4+1= 42,6$

Answer 2

45 + [(8/5-10/2) + (18/6-2)] =
45 + [(8/5 - 5) + (3-2)] =
45 + [(-17/5) + 1]=
45 - 17/5 + 1 =
213/5