Respuesta :

fuzzylittlellama

Answer: 4:5

Step-by-step explanation: First find a number 12 and 15 can both be divided by. I found 3, and did the following:

12/3=4

15/3=5

The ratio of boys to girls in Luka's math class is 4:5

jualpatel

Answer:

4:5

Step-by-step explanation:

12:15 simplifies to 4:5