ПОМОГИТЕ ВЫПОЛНИТЬ!!!!!!!!!!!!!!

Question

ПОМОГИТЕ ВЫПОЛНИТЬ!!!!!!!!!!!!!!

---

Answer 1

1) (31+21+11) / 60 = 63/60 = 1 1/20
2) (53-9-42) / 54 = 2/54 = 1/27
3) (13+23-10) / 35 = 26/35
4) (7-12+5) / 16 = 0