So,
To divide a fraction by a fraction, all you need to do is invert the second fraction and multiply the resulting fractions.
Step 1: Flip the second fraction.

Step 2: Multiply the fractions.
They played 6 songs between their first and second break.
The area of Rectangle A will always be 36 times the area of Rectangle B.
For example:
If Rectangle B has length 1 and width 2, Rectangle A will have length 6 and width 12. By multiplying, Rectangle A will have an area of 72 and B 2. Divide the two numbers and you will have 36.
Feel free to try with other numbers if you want to test it out.
1-2/3 =1/3
He ate 1/2 of 1/3
He ate 1/2 x1/3 =1/6