Answer:
Step-by-step explanation:
The point of a fraction is to express the size of something that has been divided into a number of parts equal to the denominator. For example, 1/3 represents the amount when 1 unit is divided into 3 parts.
Here, Julia has 108 that she wants to divide into x parts. The fraction 108/x will tell the size of each part.
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When x=12, the fraction becomes 108/12 = 9/1 = 9. Each friend gets 9 sand dollars.