Răspuns: 29/13
Explicație pas cu pas:
1 - 1/2 : (1 - 1/2) : [-1/5 + (-4) × (1/3 + 1/3 : (-2))] + 1/13 =
1 - 1/2 : 1/2 : [-1/5 + (-4) × (1/3 - 1/3 : 2)] + 1/13 =
1 - 1/2 × 2/1 : [-1/5 + (-4) × (1/3 - 1/3 × 1/2)] + 1/13 =
1 - 1 : [-1/5 + (-4) × (²⁾1/3 - 1/6)] + 1/13 =
1 - 1 : [-1/5 + (-4) × (2/6 - 1/6)] + 1/13 =
1 - 1 : (-1/5 + (-4) × 1/6) + 1/13 =
1 - 1 : (-1/5 - 4 × 1/6) + 1/13 =
1 - 1 : (-³⁾1/5 - ⁵⁾2/3) + 1/13 =
1 - 1 : (-3/15 - 10/15) + 1/13 =
1 - 1 : (-13/15) + 1/13 =
1 + 1 × 15/13 + 1/13 =
¹³⁾1 + 16/13 =
13/13 + 16/13 =
29/13
#copaceibrainly
