To find the fraction of the bouquet that consists of pink roses, we first need to determine how many pink roses are in the bouquet.
Angelica has a total of 12 roses, and out of these, 5 are white roses.
So, the number of pink roses is:
\[ 12 - 5 = 7 \]
Now, to find the fraction of the bouquet that contains pink roses, we take the number of pink roses and divide it by the total number of roses:
\[ \text{Fraction of pink roses} = \frac{7}{12} \]
Thus, the fraction of the bouquet that is pink roses is:
\[ \frac{7}{12} \]
The correct answer is: StartFraction 7 Over 12 EndFraction.