24 mod 5 = 4

16 div 2 =8

(24 mod 5-16 div 2) = 4 - 8 =4

trunc(-5.2) = -5

trunc(-6.8) = -6

round(-6.8) = -7

abs(trunс(-6.8)+round(-6.8)) = abs(-6-7) = abs(-13) = 13

Конечный результат:

-4*(-5)/13 = 20/13.