12x^-3 y/36^-5 y^4 Быстро сократите дробь

Объяснение:

6/12=(6:6)/(12:6)=1/2

2) 9/63=(9:9)/(63:9)=1/7

3) 21/36=(21:3)/(36:3)=7/12

4) 28/63=(28:7)/(63:7)=4/9

5) 45/60=(45:15)/(60:15)=3/4

6) 36/81=(36:9)/(81:9)=4/9

7) 65/143=(65:13)/(143:13)=5/11

8) 240/600=(240:120)/(600:120)=2/5