Answer:
Ratio or proportion
Step-by-step explanation:
Ratio has a sign called colon ( : )
This means like the comparison of two numbers or the different numbers of a given. Like an apple tree has 13 apples in it's branches this month,while the mango has 18 fruits this month.
The ratio can be get from the word that you need to follow like
The numbers of magoes to apples. So the answer is:
13:18
Hope this helps ^_^