When you write a ratio you have to pay attention to what it says in the question. If it said..... The fraction of Trumpet players in the band is 7/15. the rest are Clarinet players. What is the ratio of claranet players to trumpet players? you would have to look at the words. it said.... claronet to trumpet players....... so if there are 7 out of 15 how many are left? the ratio is 8/7.
There are a few different ways of writing a ratio, which are shown here:As a fraction- like 3/4, or like this 3:4 or 3 to 4
As a fraction (4/3), 4:3, or "4 to 3"
A ratio can be interpreted in three main ways, namely as a fraction, a decimal or a percentage.
cancept of profit valume ratio
You can write a ratio three ways. Ex: 2/9, 2 to 9 or 2:9
3 ways to write a ratio is using : to / Example, 4:5 4to5 4/5
Proper writing ways
If each of the ways is equally likely then it is the probability of the event but otherwise it is simply a ratio.