Answer:
simplified = 1000:1 or if asked division then 1/1000
1200: 0.12 is a ratio so to simplify this we remove the decimals and show that the lowest prime factor 2 and lowest denominator =1
= 1000 : 1
We can check and multiply
1200/0.12 = 1000
1 x 1000 = 1000
If the numbers are not ratios and division
then we can show the same = 1/1000
Explanation: