How are ratios and proportions used in everyday life?

Answer 1

Example of Ratio:

There are 40 Red counters and 45 blue counters what is the ratio?

First: You set out the 2 numbers out so they look like this - 40,45

Second: you divide the 2 numbers by the same number say 5 which gives you the answer 8,9 which is the answer in its simplest form