Найдите произведение

Question

Найдите произведение

---

Answer 1

3 3/4*1 7/9=15/4*16/9=20/3=6 2/3
3/4*2/9=1/6
7/9*5 2/5*1 1/14=7/9*27/5*15/14=9/2=4 1/2