100 ÷ [110 ÷ 5 - 96 × (203 - 65 × 3)] =
= 100 ÷ [22 - 96 × (203 - 195)]
= 100 ÷ (22 - 96 × 8)
= 100 ÷ (22 - 768)
= 100 ÷ (-746)
[tex]\displaystyle{=-\frac{50}{373}}[/tex]