Answer:
15 to 27 (which is equal to 5:9)
Step-by-step explanation:
The ratio 15 to 12 indicates that there is a total of 27 people in the classroom (15+12). So, if you want boys to total students, it's 15 to 27.
You can divide each of these by 3 to simplify it and get 5:9.
Answer:
15:27, or in simplified form, 5:9
Step-by-step explanation:
To find the total number of students, add the number of boys and girls in the given ratio together. You'll end up with 27, which you can use to make the ratio 15:27. This ratio can then be simplified into the ratio 5:9.
Hope this helps! :)
