Answer:
1/10 in first row
1/20 in second row
1/5 in third row
Step-by-step explanation:
Firstly take first row, and look what is required to get 1, here 5*2 is 10, so to get 1 we need to divide with 10. In second row, 20*1 is 20, so we need to divide with 20. Lastly in third row 10* ½ is 5, so we need to divide with 5
