Let's write this out to begin with:
\(\frac{15}{124} * \frac{230}{30} / \frac{230}{124}\)
Knowing PEMDAS, we know to multiply first:
\(\frac{15 * 230}{124 * 30} / \frac{230}{124}\)
\(\frac{3450}{3720} / \frac{230}{124}\)
Now, remember that when you divide by a fraction, we must flip the fraction and multiply so instead of this:
\(\frac{3450}{3720} / \frac{230}{124}\)
Our equation will look like this:
\(\frac{3450}{3720} * \frac{124}{230}\)
\(\frac{427800}{855600}\)
Which simplifies down to:
\(\frac{1}{2}\)