Answer:\frac{9}{20} (or 9/20, if this doesn't show up the right way in my answer.)Step-by-step explanation:Fist what we'll do here is divide 1000 by 450. 1000÷450=2\frac{2}{9} (2/9, if this doesn't show up the right way either).Then, we'll apply the inverse formula. In case you've forgotten, the inverse of a number is what you have to multiply a number by to get 1. The inverse of 2/9 (too lazy to put it in that form anymore) is 0.45, or 9/20.If that doesn't work, I might be interpreting this incorrectly.Here.Answer:0.05, or 1/20Step-by-step explanation:So, we have the fraction. we can simplify it to 20/9, making the numerator 20. As previously stated, the inverse of a number is what you have to multiply a number by to get 1. So, 1÷20=0.05Let me know which one works!Warmest regards,SanjanaProfessional 6th grader and quantum physics lover