Final answer:
The scale factor of 15/10 is simplified by dividing both the numerator and the denominator by 5, resulting in a simplified scale factor of 3/2.
Step-by-step explanation:
The scale factor of 15/10 when expressed in a single fraction can be simplified.
To simplify the fraction, we divide both the numerator and the denominator by their greatest common divisor.
In this case, the greatest common divisor of 15 and 10 is 5.
So, we divide both parts of the fraction by 5:
15 ÷ 5 = 3
10 ÷ 5 = 2
Thus, the simplified scale factor is 3/2.