Помогите решить я не понимаю !

Question

Помогите решить я не понимаю !

---

Comments

1) 12 1/3 - 7 3/4 = 12 4/12 - 7 9/12 = 11 16/12 - 7 9/12 = 4 7/12

---

2) 4 7/12 * 6/11 = 55/12 * 6/`11 = 55/11 * 6/12 = 5 * 1/2 = 2 1/2 = 2,5

Answer 1

(12 1/3 - 7 3/4) * 6/11 = 2,5

1) 12 1/3 - 7 3/4 = 12 4/12 - 7 9/12 = 11 16/12 - 7 9/12 = 4 7/12
2) 4 7/12 * 6/11 = 55/12 * 6/11 = 55/11 * 6/12 = 5 * 1/2 = 2 1/2 = 2,5