tolong jawab ya, pake cara

 1. 2/4= 4/8
 2. 3/5 =9/15
 3. 25/20= 5/4
 4. 5/6 = 30/36
 5. 5/15=1/3
 6. 7/4= 49/28
 7. 9/3= 27/9
 8. 14/6=7/3
 9. ,,,,
10. 25/6=75/18