Răspuns:
1/5
Explicație pas cu pas:
[3/10 - (1/2)² × (5/3 - 24/25 : 8/5)] : 1/6 = 1/5
[3/10 - 1/4 × (5/3 - 24/25 × 5/8)] : 1/6 = 1/5
[3/10 - 1/4 × (5/3 - 3/5)] × 6 = 1/5
(3/10 - 1/4 × 16/15) × 6 = 1/5
(3/10 - 4/15) × 6 = 1/5
1/30 × 6 = 1/5