Răspuns:
[(3/8)² + 7/8 - 1/8] : 1/4 × (1/3)² = (9/64 + 7/8 - 1/8) × 4 × 1/9 = 57/64 × 4 × 1/9 = 19/16 × 1/3 = (19 × 1)/(16 × 3) = 19/48
Explicație pas cu pas:
