Among 100 coffee drinkers, 36 said that they preferred their coffee black and the rest did not prefer their coffee black to those who prefer non black coffee.

Find a ratio for each of the following and write it as a ratio of integers in lowest terms.
I do not know where to begin? I do not know how to set – up.

36/100 preferred their coffee black, but the "following" are not given.

Also your first sentence is confusing. Proofread your questions before you post them.

I hope this helps.