Well, there are 100 pennies in a dollar, and 10 dimes in a dollar. So, the ratio could be 10:100, or 1:10.
First you have to change all the denominators to a common denominator.
So lets change them to 18!
3 1/6 = 3 3/18 8 2/9 = 8 4/18 1 1/2 = 1 9/18. Now add all the numerators of the fractions together that equals 16so your fraction is 16/18 Now add all your whole numbers together that equals 12. So now you have 12 16/18 now reduce to lowest terms equals 12 8/9
Your answer is 850, if it was 855 then it will go up to 860