Памагите пожалуста!!!!!!!!

Question

Памагите пожалуста!!!!!!!!

---

Answer 1

(1-4/9): (1/3-1/4)= (9/9-4/9): (4/12-3/12)= 5/9 : 1/12= 5/9 *12=20/3=6 2/3

(5/7-2/3): (4/9-5/12)= (15/21-14/21): (16/36-15/36)= 1/21 : 1/36= 1/21 * 36 =12/7=1 5/7