11. Make the two numbers into improper fractions. -26 and 1/8 turns into -209/8 and 5 and 1/2 turns into 11/2
So you now have -209/8 divided by 11/2
When you divide by fractions, you can turn it into multiplication and flip the second fraction.
So you have -209/8 times 2/11
-209 times 2=-418, 8 times 11= 88
So you have -418/88
This simplifies down to -19/4